German Blue Ram Tank Mates

German Blue Ram is peaceful, so its tank mates need choosing with care. Here are the 112 freshwater species that pair well with a german blue ram — plus the 136 to avoid — with a live checker you can tune to your own tank.

By The Aquarium DB Team • Updated June 7, 2026 • Full German Blue Ram care guide →
Best matches

The best tank mates for a german blue ram

  • Ember Tetra ✅ Compatible
    Easy care · Peaceful · 2 cm · 24–28 °C (75–82 °F)
    Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Ramshorn Snail ✅ Compatible
    Easy care · Peaceful · 2 cm · 20–28 °C (68–82 °F)
    Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Red Lip Nerite Snail ✅ Compatible
    Easy care · Peaceful · 2 cm · 22–28 °C (72–82 °F)
    Both are peaceful, and their water overlaps around 27–28 °C — no size, zone or temperament conflicts.
  • Dawn Tetra ✅ Compatible
    Easy care · Peaceful · 2.5 cm · 22–28 °C (72–82 °F)
    Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Nerite Snail ✅ Compatible
    Easy care · Peaceful · 2.5 cm · 22–28 °C (72–82 °F)
    Both are peaceful, and their water overlaps around 27–28 °C — no size, zone or temperament conflicts.
  • Malaysian Trumpet Snail ✅ Compatible
    Easy care · Peaceful · 3 cm · 21–27 °C (70–81 °F)
    Compatible on the things that matter: shared water near 27–27 °C, workable temperaments, and no predator-and-prey size gap.
  • Tail-spot Corydoras ✅ Compatible
    Easy care · Peaceful · 3 cm · 22–28 °C (72–82 °F)
    Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Glowlight Rasbora ✅ Compatible
    Easy care · Peaceful · 3.5 cm · 23–28 °C (73–82 °F)
    Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Emperor Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 23–27 °C (73–81 °F)
    Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Flame Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 22–28 °C (72–82 °F)
    Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Glowlight Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 22–28 °C (72–82 °F)
    Both are peaceful, and their water overlaps around 27–28 °C — no size, zone or temperament conflicts.
  • Phoenix Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 23–28 °C (73–82 °F)
    Both are peaceful, and their water overlaps around 27–28 °C — no size, zone or temperament conflicts.
  • Red Phantom Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 22–28 °C (72–82 °F)
    Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Rosy Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 22–28 °C (72–82 °F)
    Compatible on the things that matter: shared water near 27–28 °C, workable temperaments, and no predator-and-prey size gap.
  • Serpae Tetra ✅ Compatible
    Easy care · Semi-aggressive · 4 cm · 23–28 °C (73–82 °F)
    Peaceful + Semi-aggressive, but with no direct clash here, and their water overlaps around 27–28 °C — no size, zone or temperament conflicts.
  • Yellow Phantom Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 23–27 °C (73–81 °F)
    Compatible on the things that matter: shared water near 27–27 °C, workable temperaments, and no predator-and-prey size gap.
  • Black Phantom Tetra ✅ Compatible
    Easy care · Peaceful · 4.5 cm · 22–28 °C (72–82 °F)
    Both are peaceful, and their water overlaps around 27–28 °C — no size, zone or temperament conflicts.
  • Gold Tetra ✅ Compatible
    Easy care · Peaceful · 4.5 cm · 23–28 °C (73–82 °F)
    Compatible on the things that matter: shared water near 27–28 °C, workable temperaments, and no predator-and-prey size gap.
  • Lemon Tetra ✅ Compatible
    Easy care · Peaceful · 4.5 cm · 23–28 °C (73–82 °F)
    Both are peaceful, and their water overlaps around 27–28 °C — no size, zone or temperament conflicts.
  • X-ray Tetra ✅ Compatible
    Easy care · Peaceful · 4.5 cm · 22–28 °C (72–82 °F)
    Compatible on the things that matter: shared water near 27–28 °C, workable temperaments, and no predator-and-prey size gap.
  • Axelrod's Cory ✅ Compatible
    Easy care · Peaceful · 5 cm · 23–28 °C (73–82 °F)
    Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Bandit Corydoras ✅ Compatible
    Easy care · Peaceful · 5 cm · 22–27 °C (72–81 °F)
    Both are peaceful, and their water overlaps around 27–27 °C — no size, zone or temperament conflicts.
  • Cherry Barb ✅ Compatible
    Easy care · Peaceful · 5 cm · 23–27 °C (73–81 °F)
    Both are peaceful, and their water overlaps around 27–27 °C — no size, zone or temperament conflicts.
  • Five-banded Barb ✅ Compatible
    Easy care · Peaceful · 5 cm · 23–27 °C (73–81 °F)
    Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
With caution

German Blue Ram tank mates that can work with care

  • Afra Cichlid ⚠️ With caution
    Medium care · Semi-aggressive · 10 cm · 24–28 °C (75–82 °F)
    pH preferences only just meet (German Blue Ram 5–7 vs Afra Cichlid 7.8–8.6) — target the overlap and acclimate slowly.
  • African Butterfly Cichlid ⚠️ With caution
    Medium care · Semi-aggressive · 8 cm · 22–28 °C (72–82 °F)
    Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
  • Amano Shrimp ⚠️ With caution
    Easy care · Peaceful · 5 cm · 18–28 °C (64–82 °F)
    Adult Amano Shrimp might survive with German Blue Ram, but expect the young to be eaten — plant heavily.
  • Amazon Puffer ⚠️ With caution
    Medium care · Peaceful · 8 cm · 23–28 °C (73–82 °F)
    Your 75 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
  • Angelfish ⚠️ With caution
    Medium care · Semi-aggressive · 15 cm · 24–30 °C (75–86 °F)
    German Blue Ram is small enough to tempt Angelfish; only risk it in a densely planted setup with hiding spots.
  • Arrowhead Puffer ⚠️ With caution
    Hard care · Aggressive · 12 cm · 23–28 °C (73–82 °F)
    Arrowhead Puffer may hunt German Blue Ram, fry or shrimplets — safest in a heavily planted tank.
  • Ash Lipped Apisto ⚠️ With caution
    Hard care · Semi-aggressive · 7 cm · 24–29 °C (75–84 °F)
    Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
  • Auratus Cichlid ⚠️ With caution
    Medium care · Aggressive · 11 cm · 23–28 °C (73–82 °F)
    Different pH ranges (5–7 vs 7.6–8.8); doable if you sit in the shared band, but not ideal long-term.

+ 84 more “with caution” pairings — see the interactive checker above.

Avoid

Fish to avoid keeping with a german blue ram

  • Wels Catfish ⛔ Avoid
    Hard care · Aggressive · 300 cm · 15–25 °C (59–77 °F)
    Temperature needs don't overlap (German Blue Ram 27–30 °C vs Wels Catfish 15–25 °C).
  • Alligator Gar ⛔ Avoid
    Hard care · Aggressive · 250 cm · 24–28 °C (75–82 °F)
    Alligator Gar (250 cm) is big enough to swallow the 6 cm German Blue Ram whole.
  • Redtail Catfish ⛔ Avoid
    Hard care · Aggressive · 120 cm · 24–27 °C (75–81 °F)
    German Blue Ram is bite-sized to a 120 cm predatory redtail catfish — it will be eaten.
  • Fire Eel ⛔ Avoid
    Medium care · Semi-aggressive · 100 cm · 24–28 °C (75–82 °F)
    Size gap is too large (100 vs 6 cm): Fire Eel will treat German Blue Ram as food.
  • Clown Knifefish ⛔ Avoid
    Hard care · Aggressive · 90 cm · 24–28 °C (75–82 °F)
    German Blue Ram is bite-sized to a 90 cm predatory clown knifefish — it will be eaten.
  • Koi ⛔ Avoid
    Medium care · Peaceful · 90 cm · 4–28 °C (39–82 °F)
    Koi (90 cm) is big enough to swallow the 6 cm German Blue Ram whole.
  • Spotted Gar ⛔ Avoid
    Hard care · Aggressive · 90 cm · 18–26 °C (64–79 °F)
    Temperature needs don't overlap (German Blue Ram 27–30 °C vs Spotted Gar 18–26 °C).
  • Wolf Cichlid ⛔ Avoid
    Hard care · Aggressive · 72 cm · 24–30 °C (75–86 °F)
    Wolf Cichlid (72 cm) is big enough to swallow the 6 cm German Blue Ram whole.

+ 128 more to avoid — the checker above flags every one.

Interactive tool

Check any fish against a german blue ram

Dial in your exact tank size and filter by result — the checker scores every species in our database against a german blue ram, with the reasoning for each verdict.

Tank-mate checker

Will it live with a German Blue Ram?

We compare each fish against your german blue ram on temperament, size, water parameters and swimming zone. Set your tank size and filter the results.

  • Agassiz's Corydoras✅ Compatible
    Peaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
    • Compatible on the things that matter: shared water near 27–28 °C, workable temperaments, and no predator-and-prey size gap.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Agassiz's Corydoras in a shoal of 6+ or it gets stressed and nippy.
  • Banded Dwarf Cichlid✅ Compatible
    Semi-aggressive · 7 cm · Medium care · 24–30 °C (75–86 °F)
    • Compatible on the things that matter: shared water near 27–30 °C, workable temperaments, and no predator-and-prey size gap.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
  • Betta✅ Compatible
    Semi-aggressive · 6.5 cm · Easy care · 24–28 °C (75–82 °F)
    • Compatible on the things that matter: shared water near 27–28 °C, workable temperaments, and no predator-and-prey size gap.
  • Blackline Rasbora✅ Compatible
    Peaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
    • Compatible on the things that matter: shared water near 27–28 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Blackline Rasbora in a shoal of 6+ or it gets stressed and nippy.
  • Blood Red Tiger Pleco✅ Compatible
    Peaceful · 6 cm · Medium care · 24–29 °C (75–84 °F)
    • Both are peaceful, and their water overlaps around 27–29 °C — no size, zone or temperament conflicts.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
  • Bloodfin Tetra✅ Compatible
    Peaceful · 5.5 cm · Easy care · 18–28 °C (64–82 °F)
    • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
    • Keep Bloodfin Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Costa's Tetra✅ Compatible
    Peaceful · 7 cm · Easy care · 22–28 °C (72–82 °F)
    • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
    • Keep Costa's Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Croaking Gourami✅ Compatible
    Peaceful · 7 cm · Easy care · 24–28 °C (75–82 °F)
    • Both are peaceful, and their water overlaps around 27–28 °C — no size, zone or temperament conflicts.
  • Desert Goby✅ Compatible
    Semi-aggressive · 6 cm · Easy care · 18–28 °C (64–82 °F)
    • Compatible on the things that matter: shared water near 27–28 °C, workable temperaments, and no predator-and-prey size gap.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
  • Diamond Tetra✅ Compatible
    Peaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
    • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
    • Keep Diamond Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Duplicareus Corydoras✅ Compatible
    Peaceful · 5.5 cm · Medium care · 23–27 °C (73–81 °F)
    • Both are peaceful, and their water overlaps around 27–27 °C — no size, zone or temperament conflicts.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Duplicareus Corydoras in a shoal of 6+ or it gets stressed and nippy.
  • Eastern Betta✅ Compatible
    Semi-aggressive · 6 cm · Medium care · 24–28 °C (75–82 °F)
    • Compatible on the things that matter: shared water near 27–28 °C, workable temperaments, and no predator-and-prey size gap.
  • Elegant Cory✅ Compatible
    Peaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
    • Compatible on the things that matter: shared water near 27–28 °C, workable temperaments, and no predator-and-prey size gap.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Elegant Cory in a shoal of 6+ or it gets stressed and nippy.
  • Glass Bloodfin Tetra✅ Compatible
    Peaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
    • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
    • Keep Glass Bloodfin Tetra in a shoal of 6+ or it gets stressed and nippy.
  • GloFish Tetra✅ Compatible
    Semi-aggressive · 6 cm · Easy care · 21–28 °C (70–82 °F)
    • Compatible on the things that matter: shared water near 27–28 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep GloFish Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Guppy✅ Compatible
    Peaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
    • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Neon Dwarf Rainbowfish✅ Compatible
    Peaceful · 6 cm · Easy care · 23–27 °C (73–81 °F)
    • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
    • Keep Neon Dwarf Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
  • Peaceful Betta✅ Compatible
    Semi-aggressive · 6 cm · Medium care · 24–28 °C (75–82 °F)
    • Peaceful + Semi-aggressive, but with no direct clash here, and their water overlaps around 27–28 °C — no size, zone or temperament conflicts.
  • Rust Corydoras✅ Compatible
    Peaceful · 5.5 cm · Easy care · 23–27 °C (73–81 °F)
    • Compatible on the things that matter: shared water near 27–27 °C, workable temperaments, and no predator-and-prey size gap.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Rust Corydoras in a shoal of 6+ or it gets stressed and nippy.
  • Samurai Gourami✅ Compatible
    Peaceful · 6 cm · Hard care · 24–28 °C (75–82 °F)
    • Compatible on the things that matter: shared water near 27–28 °C, workable temperaments, and no predator-and-prey size gap.
  • Slate Corydoras✅ Compatible
    Peaceful · 6 cm · Medium care · 23–28 °C (73–82 °F)
    • Compatible on the things that matter: shared water near 27–28 °C, workable temperaments, and no predator-and-prey size gap.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Slate Corydoras in a shoal of 6+ or it gets stressed and nippy.
  • Smaragd Betta✅ Compatible
    Aggressive · 6 cm · Medium care · 23–28 °C (73–82 °F)
    • Peaceful + Aggressive, but with no direct clash here, and their water overlaps around 27–28 °C — no size, zone or temperament conflicts.
  • Sterbai Corydoras✅ Compatible
    Peaceful · 6.5 cm · Medium care · 24–30 °C (75–86 °F)
    • Compatible on the things that matter: shared water near 27–30 °C, workable temperaments, and no predator-and-prey size gap.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Sterbai Corydoras in a shoal of 6+ or it gets stressed and nippy.
  • Three-striped Dwarf Cichlid✅ Compatible
    Semi-aggressive · 6 cm · Medium care · 23–29 °C (73–84 °F)
    • Peaceful + Semi-aggressive, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
  • African Butterfly Cichlid⚠️ With caution
    Semi-aggressive · 8 cm · Medium care · 22–28 °C (72–82 °F)
    • Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
  • Amano Shrimp⚠️ With caution
    Peaceful · 5 cm · Easy care · 18–28 °C (64–82 °F)
    • Adult Amano Shrimp might survive with German Blue Ram, but expect the young to be eaten — plant heavily.
  • Amazon Puffer⚠️ With caution
    Peaceful · 8 cm · Medium care · 23–28 °C (73–82 °F)
    • Your 75 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
    • Keep Amazon Puffer in a shoal of 6+ or it gets stressed and nippy.
  • Ash Lipped Apisto⚠️ With caution
    Semi-aggressive · 7 cm · Hard care · 24–29 °C (75–84 °F)
    • Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
  • Bleeding Heart Tetra⚠️ With caution
    Semi-aggressive · 7 cm · Medium care · 23–28 °C (73–82 °F)
    • Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
    • Keep Bleeding Heart Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Blue Turbo Snail⚠️ With caution
    Peaceful · 5 cm · Medium care · 25–30 °C (77–86 °F)
    • pH preferences only just meet (German Blue Ram 5–7 vs Blue Turbo Snail 7.5–8.5) — target the overlap and acclimate slowly.
  • Bright Diamond Tetra⚠️ With caution
    Peaceful · 7 cm · Hard care · 24–28 °C (75–82 °F)
    • Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
    • Keep Bright Diamond Tetra in a shoal of 8+ or it gets stressed and nippy.
  • Celebes Rainbowfish⚠️ With caution
    Peaceful · 7 cm · Medium care · 22–28 °C (72–82 °F)
    • Water hardness preferences differ (German Blue Ram 1–8 vs Celebes Rainbowfish 10–20 dGH).
    • Keep Celebes Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
  • Colombian Tetra⚠️ With caution
    Semi-aggressive · 6.5 cm · Easy care · 24–28 °C (75–82 °F)
    • Your 75 L tank is below the ~114 L this pairing really wants — crowding raises aggression.
    • Keep Colombian Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Congo Tetra⚠️ With caution
    Peaceful · 8 cm · Medium care · 22–28 °C (72–82 °F)
    • Your 75 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
    • Keep Congo Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Dwarf Chain Loach⚠️ With caution
    Peaceful · 6 cm · Medium care · 24–29 °C (75–84 °F)
    • Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Humpbacked Tetra⚠️ With caution
    Semi-aggressive · 5 cm · Hard care · 24–28 °C (75–82 °F)
    • Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
    • Keep Humpbacked Tetra in a shoal of 8+ or it gets stressed and nippy.
  • Melon Barb⚠️ With caution
    Peaceful · 7 cm · Easy care · 22–28 °C (72–82 °F)
    • Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
    • Keep Melon Barb in a shoal of 8+ or it gets stressed and nippy.
  • Platy⚠️ With caution
    Peaceful · 6 cm · Easy care · 21–28 °C (70–82 °F)
    • Water hardness preferences differ (German Blue Ram 1–8 vs Platy 10–28 dGH).
  • Rounded Filament Barb⚠️ With caution
    Peaceful · 7 cm · Medium care · 22–27 °C (72–81 °F)
    • Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
    • Keep Rounded Filament Barb in a shoal of 6+ or it gets stressed and nippy.
  • Tiger Barb⚠️ With caution
    Semi-aggressive · 7 cm · Easy care · 22–28 °C (72–82 °F)
    • Your 75 L tank is below the ~95 L this pairing really wants — crowding raises aggression.
    • Keep Tiger Barb in a shoal of 6+ or it gets stressed and nippy.
  • Alligator Gar⛔ Not recommended
    Aggressive · 250 cm · Hard care · 24–28 °C (75–82 °F)
    • Alligator Gar (250 cm) is big enough to swallow the 6 cm German Blue Ram whole.
    • Your 75 L tank is below the ~3785 L this pairing really wants — crowding raises aggression.
  • Clown Knifefish⛔ Not recommended
    Aggressive · 90 cm · Hard care · 24–28 °C (75–82 °F)
    • German Blue Ram is bite-sized to a 90 cm predatory clown knifefish — it will be eaten.
    • Your 75 L tank is below the ~750 L this pairing really wants — crowding raises aggression.
  • Fire Eel⛔ Not recommended
    Semi-aggressive · 100 cm · Medium care · 24–28 °C (75–82 °F)
    • Size gap is too large (100 vs 6 cm): Fire Eel will treat German Blue Ram as food.
    • Your 75 L tank is below the ~380 L this pairing really wants — crowding raises aggression.
  • Koi⛔ Not recommended
    Peaceful · 90 cm · Medium care · 4–28 °C (39–82 °F)
    • Koi (90 cm) is big enough to swallow the 6 cm German Blue Ram whole.
    • One likes softer water and the other harder (1–8 vs 9–18 dGH) — a compromise, not a perfect match.
    • Your 75 L tank is below the ~3800 L this pairing really wants — crowding raises aggression.
  • Redtail Catfish⛔ Not recommended
    Aggressive · 120 cm · Hard care · 24–27 °C (75–81 °F)
    • German Blue Ram is bite-sized to a 120 cm predatory redtail catfish — it will be eaten.
    • Your 75 L tank is below the ~5700 L this pairing really wants — crowding raises aggression.
  • Spotted Gar⛔ Not recommended
    Aggressive · 90 cm · Hard care · 18–26 °C (64–79 °F)
    • Temperature needs don't overlap (German Blue Ram 27–30 °C vs Spotted Gar 18–26 °C).
    • Spotted Gar (90 cm) is big enough to swallow the 6 cm German Blue Ram whole.
    • Your 75 L tank is below the ~600 L this pairing really wants — crowding raises aggression.
  • Wels Catfish⛔ Not recommended
    Aggressive · 300 cm · Hard care · 15–25 °C (59–77 °F)
    • Temperature needs don't overlap (German Blue Ram 27–30 °C vs Wels Catfish 15–25 °C).
    • Size gap is too large (300 vs 6 cm): Wels Catfish will treat German Blue Ram as food.
    • Your 75 L tank is below the ~20000 L this pairing really wants — crowding raises aggression.
  • Wolf Cichlid⛔ Not recommended
    Aggressive · 72 cm · Hard care · 24–30 °C (75–86 °F)
    • Wolf Cichlid (72 cm) is big enough to swallow the 6 cm German Blue Ram whole.
    • Your 75 L tank is below the ~760 L this pairing really wants — crowding raises aggression.

Compatibility is computed from each species' care data — a strong starting point, not a guarantee. Individual temperament varies, so always introduce new fish slowly and watch them.

Setting up a german blue ram community tank

Give the group a stable, planted 75 L+ tank with a gentle filter, a reliable heater and plenty of cover — broken sight lines and hiding spots let mid-water and bottom dwellers keep out of each other's way. Cycle it fully and stock gradually.

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How to choose

How to choose the right tank mates for a german blue ram

As a peaceful species, german blue ram is easily bullied — favour other calm, non-nippy fish and steer clear of boisterous or aggressive tank mates. It mostly occupies the bottom of the tank, so it pairs naturally with species that use the other levels.

German Blue Ram grows to about 6 cm, so avoid tank mates small enough to be seen as food — as a rule of thumb, skip anything under roughly 3 cm. Match its water, too: aim for 27–30 °C (81–86 °F), pH 5–7 and 1–8 dGH. Fish needing very different conditions — coldwater species, or hard-water lovers against a soft-water fish — rarely thrive side by side.

German Blue Ram is a shoaling fish — stock a group of 2+ of its own kind first, then build compatible tank mates around them. Whatever you add, introduce new fish slowly, watch for bullying in the first days, and have a backup plan if temperaments clash.

FAQ

Frequently asked questions

Can a german blue ram live with other fish?

Yes — with the right companions. Our checker finds 112 compatible freshwater species for german blue ram. Pick calm, similarly-sized fish that share its water needs and add them to a mature, well-planted tank.

What is the best tank mate for a german blue ram?

Easy, peaceful, similarly-sized species top the list — for example Ember Tetra, Ramshorn Snail, Red Lip Nerite Snail. Use the checker above to match against your own tank size.

What fish should you avoid keeping with a german blue ram?

Avoid Wels Catfish, Alligator Gar, Redtail Catfish and similar — usually a temperature, size or temperament clash. The full "avoid" list below gives the reason for each.

How big a tank do german blue ram tank mates need?

Start from German Blue Ram's own minimum and scale up with every addition. The checker above defaults to a 75 L community tank and flags pairings that need more room — drag the slider to match your setup.

← Back to the full German Blue Ram care guide