Photo: Parostoteles (CC BY-SA 3.0) — via Wikimedia Commons
Wine Red Betta (Betta coccina)
A jewel-toned wild betta from peat swamps that rewards soft-water specialists with stunning crimson colour and fascinating bubblenest behaviour.
Will it live with a Wine Red Betta?
We compare each fish against your wine red betta on temperament, size, water parameters and swimming zone. Set your tank size and filter the results.
- Adolf's Cory✅ CompatiblePeaceful · 5.5 cm · Medium care · 22–26 °C (72–79 °F)
- Aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–26 °C — no size, zone or temperament conflicts.
- Keep Adolf's Cory in a shoal of 6+ or it gets stressed and nippy.
- Agassiz's Corydoras✅ CompatiblePeaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
- Aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
- Keep Agassiz's Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Axelrod's Cory✅ CompatiblePeaceful · 5 cm · Easy care · 23–28 °C (73–82 °F)
- Aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
- Keep Axelrod's Cory in a shoal of 6+ or it gets stressed and nippy.
- Bandit Corydoras✅ CompatiblePeaceful · 5 cm · Easy care · 22–27 °C (72–81 °F)
- Compatible on the things that matter: shared water near 24–27 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Bandit Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Blackline Rasbora✅ CompatiblePeaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
- Aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
- Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
- Keep Blackline Rasbora in a shoal of 6+ or it gets stressed and nippy.
- Blood Red Tiger Pleco✅ CompatiblePeaceful · 6 cm · Medium care · 24–29 °C (75–84 °F)
- Aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
- Bloodfin Tetra✅ CompatiblePeaceful · 5.5 cm · Easy care · 18–28 °C (64–82 °F)
- Aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
- Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
- Keep Bloodfin Tetra in a shoal of 6+ or it gets stressed and nippy.
- Butterfly Hillstream Loach✅ CompatiblePeaceful · 6 cm · Hard care · 18–24 °C (64–75 °F)
- Aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Diamond Tetra✅ CompatiblePeaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
- Aggressive + Peaceful, 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 middle of the tank — offer enough cover so they aren't always in each other's space.
- Keep Diamond Tetra in a shoal of 6+ or it gets stressed and nippy.
- Duplicareus Corydoras✅ CompatiblePeaceful · 5.5 cm · Medium care · 23–27 °C (73–81 °F)
- Aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Keep Duplicareus Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Elegant Cory✅ CompatiblePeaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
- Aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Keep Elegant Cory in a shoal of 6+ or it gets stressed and nippy.
- False Julii Corydoras✅ CompatiblePeaceful · 6 cm · Easy care · 22–26 °C (72–79 °F)
- Aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–26 °C — no size, zone or temperament conflicts.
- Keep False Julii Corydoras in a shoal of 6+ or it gets stressed and nippy.
- German Blue Ram✅ CompatiblePeaceful · 6 cm · Hard care · 27–30 °C (81–86 °F)
- Aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Glass Bloodfin Tetra✅ CompatiblePeaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
- Aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
- Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
- Keep Glass Bloodfin Tetra in a shoal of 6+ or it gets stressed and nippy.
- Hillstream Loach✅ CompatiblePeaceful · 6 cm · Hard care · 20–24 °C (68–75 °F)
- Aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Horseman Cory✅ CompatiblePeaceful · 5 cm · Medium care · 22–26 °C (72–79 °F)
- Aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–26 °C — no size, zone or temperament conflicts.
- Keep Horseman Cory in a shoal of 6+ or it gets stressed and nippy.
- Julii Corydoras✅ CompatiblePeaceful · 5 cm · Easy care · 23–26 °C (73–79 °F)
- Compatible on the things that matter: shared water near 24–26 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Julii Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Masked Corydoras✅ CompatiblePeaceful · 5 cm · Easy care · 22–28 °C (72–82 °F)
- Compatible on the things that matter: shared water near 24–28 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Masked Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Narcissus II Cory✅ CompatiblePeaceful · 5.5 cm · Medium care · 22–26 °C (72–79 °F)
- Compatible on the things that matter: shared water near 24–26 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Narcissus II Cory in a shoal of 6+ or it gets stressed and nippy.
- Panda Corydoras✅ CompatiblePeaceful · 5 cm · Medium care · 20–26 °C (68–79 °F)
- Aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–26 °C — no size, zone or temperament conflicts.
- Keep Panda Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Pearl Danio✅ CompatiblePeaceful · 6 cm · Easy care · 20–25 °C (68–77 °F)
- Compatible on the things that matter: shared water near 24–25 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Pearl Danio in a shoal of 6+ or it gets stressed and nippy.
- Rust Corydoras✅ CompatiblePeaceful · 5.5 cm · Easy care · 23–27 °C (73–81 °F)
- Aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–27 °C — no size, zone or temperament conflicts.
- Keep Rust Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Skunk Corydoras✅ CompatiblePeaceful · 5 cm · Easy care · 22–26 °C (72–79 °F)
- Compatible on the things that matter: shared water near 24–26 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Slate Corydoras✅ CompatiblePeaceful · 6 cm · Medium care · 23–28 °C (73–82 °F)
- Aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
- Keep Slate Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Amano Shrimp⚠️ With cautionPeaceful · 5 cm · Easy care · 18–28 °C (64–82 °F)
- One likes softer water and the other harder (0–4 vs 6–15 dGH) — a compromise, not a perfect match.
- Wine Red Betta may eat Amano Shrimp or pick off its shrimplets — a densely planted tank with moss gives them a fighting chance.
- Blue Turbo Snail⚠️ With cautionPeaceful · 5 cm · Medium care · 25–30 °C (77–86 °F)
- Different pH ranges (4–6.5 vs 7.5–8.5); doable if you sit in the shared band, but not ideal long-term.
- Water hardness preferences differ (Wine Red Betta 0–4 vs Blue Turbo Snail 8–18 dGH).
- Checkered Barb⚠️ With cautionPeaceful · 5 cm · Easy care · 20–25 °C (68–77 °F)
- Wine Red Betta is aggressive and may chase or nip the smaller Checkered Barb — plant heavily and break up sight lines.
- Keep Checkered Barb in a shoal of 6+ or it gets stressed and nippy.
- Cherry Barb⚠️ With cautionPeaceful · 5 cm · Easy care · 23–27 °C (73–81 °F)
- Wine Red Betta is aggressive and may chase or nip the smaller Cherry Barb — plant heavily and break up sight lines.
- Keep Cherry Barb in a shoal of 6+ or it gets stressed and nippy.
- Chocolate Gourami⚠️ With cautionPeaceful · 5 cm · Hard care · 25–30 °C (77–86 °F)
- Wine Red Betta is aggressive and may chase or nip the smaller Chocolate Gourami — plant heavily and break up sight lines.
- Wine Red Betta and Chocolate Gourami are both labyrinth fish and often treat each other as rivals — give a large, broken-up tank and be ready to separate them.
- Keep Chocolate Gourami in a shoal of 6+ or it gets stressed and nippy.
- Cochu's Blue Tetra⚠️ With cautionPeaceful · 5 cm · Medium care · 22–28 °C (72–82 °F)
- Wine Red Betta is aggressive and may chase or nip the smaller Cochu's Blue Tetra — plant heavily and break up sight lines.
- Keep Cochu's Blue Tetra in a shoal of 8+ or it gets stressed and nippy.
- Firehead Tetra⚠️ With cautionPeaceful · 5 cm · Medium care · 24–28 °C (75–82 °F)
- Wine Red Betta and Firehead Tetra are close in size, but the aggressive one tends to dominate — add firehead tetra in a group to spread the pressure.
- Keep Firehead Tetra in a shoal of 8+ or it gets stressed and nippy.
- Five-banded Barb⚠️ With cautionPeaceful · 5 cm · Easy care · 23–27 °C (73–81 °F)
- Wine Red Betta and Five-banded Barb are close in size, but the aggressive one tends to dominate — add five-banded barb in a group to spread the pressure.
- Keep Five-banded Barb in a shoal of 6+ or it gets stressed and nippy.
- Forktail Blue-eye⚠️ With cautionPeaceful · 5 cm · Easy care · 22–28 °C (72–82 °F)
- Water hardness preferences differ (Wine Red Betta 0–4 vs Forktail Blue-eye 5–20 dGH).
- Expect Wine Red Betta to harass Forktail Blue-eye at times; give dense cover and watch them at feeding.
- Keep Forktail Blue-eye in a shoal of 6+ or it gets stressed and nippy.
- Half-striped Penguin Tetra⚠️ With cautionPeaceful · 5 cm · Medium care · 23–28 °C (73–82 °F)
- Wine Red Betta is aggressive and may chase or nip the smaller Half-striped Penguin Tetra — plant heavily and break up sight lines.
- Keep Half-striped Penguin Tetra in a shoal of 6+ or it gets stressed and nippy.
- Harlequin Rasbora⚠️ With cautionPeaceful · 5 cm · Easy care · 23–28 °C (73–82 °F)
- Wine Red Betta and Harlequin Rasbora are close in size, but the aggressive one tends to dominate — add harlequin rasbora in a group to spread the pressure.
- Keep Harlequin Rasbora in a shoal of 6+ or it gets stressed and nippy.
- Honey Gourami⚠️ With cautionPeaceful · 5 cm · Easy care · 22–28 °C (72–82 °F)
- Wine Red Betta and Honey Gourami are close in size, but the aggressive one tends to dominate — add honey gourami in a group to spread the pressure.
- Wine Red Betta and Honey Gourami are both labyrinth fish and often treat each other as rivals — give a large, broken-up tank and be ready to separate them.
- Japanese Trapdoor Snail⚠️ With cautionPeaceful · 5 cm · Easy care · 10–28 °C (50–82 °F)
- Different pH ranges (4–6.5 vs 7–8); doable if you sit in the shared band, but not ideal long-term.
- Water hardness preferences differ (Wine Red Betta 0–4 vs Japanese Trapdoor Snail 6–15 dGH).
- Morse Code Corydoras⚠️ With cautionPeaceful · 5 cm · Medium care · 23–26 °C (73–79 °F)
- Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
- Keep Morse Code Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Mystery Snail⚠️ With cautionPeaceful · 5 cm · Easy care · 20–28 °C (68–82 °F)
- Different pH ranges (4–6.5 vs 7–8); doable if you sit in the shared band, but not ideal long-term.
- Water hardness preferences differ (Wine Red Betta 0–4 vs Mystery Snail 7–18 dGH).
- Expect Wine Red Betta to harass Mystery Snail at times; give dense cover and watch them at feeding.
- Rummy-nose Tetra⚠️ With cautionPeaceful · 5 cm · Medium care · 23–29 °C (73–84 °F)
- Wine Red Betta is aggressive and may chase or nip the smaller Rummy-nose Tetra — plant heavily and break up sight lines.
- Keep Rummy-nose Tetra in a shoal of 6+ or it gets stressed and nippy.
- Alligator Gar⛔ Not recommendedAggressive · 250 cm · Hard care · 24–28 °C (75–82 °F)
- Two assertive fish, one genuinely aggressive: Wine Red Betta and Alligator Gar will hold territory and clash.
- Size gap is too large (250 vs 5 cm): Alligator Gar will treat Wine Red Betta as food.
- pH preferences only just meet (Wine Red Betta 4–6.5 vs Alligator Gar 6.8–7.8) — target the overlap and acclimate slowly.
- Your 75 L tank is below the ~3785 L this pairing really wants — crowding raises aggression.
- Clown Knifefish⛔ Not recommendedAggressive · 90 cm · Hard care · 24–28 °C (75–82 °F)
- Wine Red Betta and Clown Knifefish are both territorial and at least one is outright aggressive — expect serious fighting.
- Wine Red Betta is bite-sized to a 90 cm predatory clown knifefish — it will be eaten.
- Water hardness preferences differ (Wine Red Betta 0–4 vs Clown Knifefish 5–15 dGH).
- Your 75 L tank is below the ~750 L this pairing really wants — crowding raises aggression.
- Fire Eel⛔ Not recommendedSemi-aggressive · 100 cm · Medium care · 24–28 °C (75–82 °F)
- Wine Red Betta and Fire Eel are both territorial and at least one is outright aggressive — expect serious fighting.
- Wine Red Betta is bite-sized to a 100 cm predatory fire eel — it will be eaten.
- Water hardness preferences differ (Wine Red Betta 0–4 vs Fire Eel 5–15 dGH).
- Your 75 L tank is below the ~380 L this pairing really wants — crowding raises aggression.
- Koi⛔ Not recommendedPeaceful · 90 cm · Medium care · 4–28 °C (39–82 °F)
- Wine Red Betta is bite-sized to a 90 cm koi — it will be eaten.
- Water hardness preferences differ (Wine Red Betta 0–4 vs Koi 9–18 dGH).
- Your 75 L tank is below the ~3800 L this pairing really wants — crowding raises aggression.
- Mekong Giant Catfish⛔ Not recommendedSemi-aggressive · 300 cm · Hard care · 20–28 °C (68–82 °F)
- Two assertive fish, one genuinely aggressive: Wine Red Betta and Mekong Giant Catfish will hold territory and clash.
- Your 75 L tank is below the ~100000 L this pairing really wants — crowding raises aggression.
- Redtail Catfish⛔ Not recommendedAggressive · 120 cm · Hard care · 24–27 °C (75–81 °F)
- Two assertive fish, one genuinely aggressive: Wine Red Betta and Redtail Catfish will hold territory and clash.
- Size gap is too large (120 vs 5 cm): Redtail Catfish will treat Wine Red Betta as food.
- Your 75 L tank is below the ~5700 L this pairing really wants — crowding raises aggression.
- Spotted Gar⛔ Not recommendedAggressive · 90 cm · Hard care · 18–26 °C (64–79 °F)
- Two assertive fish, one genuinely aggressive: Wine Red Betta and Spotted Gar will hold territory and clash.
- Spotted Gar (90 cm) is big enough to swallow the 5 cm Wine Red Betta whole.
- Your 75 L tank is below the ~600 L this pairing really wants — crowding raises aggression.
- Wels Catfish⛔ Not recommendedAggressive · 300 cm · Hard care · 15–25 °C (59–77 °F)
- Two assertive fish, one genuinely aggressive: Wine Red Betta and Wels Catfish will hold territory and clash.
- Wels Catfish (300 cm) is big enough to swallow the 5 cm Wine Red Betta whole.
- One likes softer water and the other harder (0–4 vs 5–15 dGH) — a compromise, not a perfect match.
- Your 75 L tank is below the ~20000 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.
Wine Red Betta care specs
- Care level
- Medium
- Breeding
- Medium
- Max size
- 5 cm (2 in)
- Min tank size
- 40 L (10.6 gal)
- Temperature
- 24–28 °C (75–82 °F)
- pH
- 4–6.5
- Hardness
- 0–4 dGH
- Lifespan
- 3–5 years
- Diet
- Carnivore
- Swim level
- Middle
- Group size
- Best alone or in a pair
- Family
- Osphronemidae
- Origin
- Sundaland peat swamps — Sumatra and the Malay Peninsula
What is a Wine Red Betta?
The Wine Red Betta (Betta coccina) is a small wild betta native to the blackwater peat swamps of Sundaland — Sumatra and the southern Malay Peninsula. Adults reach just 5 cm (2 in), far smaller and more slender than Betta splendens, but a fully conditioned male is one of the most striking freshwater fish in the hobby: deep wine red to scarlet across the entire body, with iridescent blue-green scale edges that shift with the light. It belongs to the coccina complex of bubblenesting wild bettas, and its care rating of Medium reflects one clear challenge — the water chemistry is non-negotiable. Aquarists already comfortable managing a blackwater biotope will find this species highly rewarding.
Where does the Wine Red Betta come from?
Betta coccina is endemic to Sundaland peat-swamp forests: shallow, heavily tannic water stained dark brown by decaying leaf litter, with pH often below 4.0, near-zero dissolved minerals, and temperatures of 24–28 °C (75–82 °F) year-round. These forests have been extensively drained for agriculture, making the species of conservation concern. Most aquarium specimens are captive-bred, which is preferred — captive fish are acclimated to aquarium conditions and free of wild-caught pathogens.
What tank size and setup does a Wine Red Betta need?
The minimum is 40 L (10 gal) for one specimen or a true pair; 60–80 L (15–21 gal) is better if dither fish are included. A long, shallow footprint suits the species — it occupies the middle water column and is not a strong swimmer. Recreate peat-swamp conditions with:
- Botanicals: Indian almond (Catappa) leaves, alder cones, or seed pods to release tannins and buffer pH.
- Filtration: gentle flow only — a small sponge filter is ideal. Strong current stresses the fish and disrupts the bubblenest.
- Lighting: dim and diffuse. Floating plants (Salvinia, Ceratopteris) provide surface cover and security.
- Lid: essential; Betta coccina will jump, especially during spawning.
What water parameters does a Wine Red Betta need?
This species demands true blackwater conditions. Its parameters are not negotiable:
- Temperature: 24–28 °C (75–82 °F).
- pH: 4.0–6.5; target 4.5–6.0 for peak colour.
- Hardness: 0–4 dGH — use reverse-osmosis or rain water, re-acidified with botanicals or peat filtration. Untreated hard tap water will dull colour and shorten lifespan.
Test chemistry regularly, particularly after water changes; in a small acidic tank, even slightly harder top-up water shifts parameters quickly. Always match temperature before adding change water.
What do Wine Red Bettas eat?
A carnivore in the wild, Betta coccina feeds on insects, larvae, and small invertebrates. In the aquarium, live and frozen foods produce the best colour and conditioning: fruit flies, micro-worms, Grindal worms, small bloodworms, daphnia, and baby brine shrimp are all accepted. A quality small betta micro-pellet can serve as a base, though some individuals are reluctant to take dry food at first. Feed small portions once or twice daily, remove uneaten food promptly, and allow a fast day each week — waste accumulation is particularly damaging in soft, low-pH water.
How aggressive is the Wine Red Betta, and what are compatible tank mates?
The Aggressive rating is mainly directed at conspecific males. Two males will fight seriously — one male per tank, always. A male-female pair is workable but watch for persistent harassment; provide dense cover and be ready to separate if needed. Toward other species, the fish is more tolerant than its label implies, provided tank mates share its blackwater requirements. Reliable choices include small bioregionally matched rasboras — Boraras brigittae (Chili Rasbora), Boraras maculatus — which act as calm dither fish without competing for territory. Avoid brightly coloured, long-finned, or nippy species entirely. For a full compatibility breakdown, see Wine Red Betta tank mates.
How do you tell male and female Wine Red Bettas apart?
Males are more intensely red, with brighter iridescent blue-green scale edging and a slightly slimmer body profile. Females carry a distinctive white spot on the operculum (gill cover) — the clearest field mark in the species — and become noticeably fuller-bodied when gravid. Outside breeding condition, females may show some red colouration, but never with the saturation or uniformity of a well-conditioned male.
How do Wine Red Bettas breed?
Betta coccina is a bubblenester at Medium difficulty. The chemistry demands are the main hurdle; once conditions are correct, courtship is relatively straightforward to trigger. Condition both fish on live or high-quality frozen foods for two to four weeks. The male will build a small bubblenest, typically tucked under a leaf or piece of wood; introduce the female only when the nest is active. The male wraps around the female in a nuptial embrace, fertilises and collects the falling eggs, and places them into the nest. Remove the female after spawning to prevent aggression. Fry hatch in around 24–36 hours at 26 °C (79 °F) and become free-swimming a few days later. Start them on infusoria or paramecia, then move to micro-worms and baby brine shrimp.
What diseases are common in Wine Red Bettas?
Most health problems in this species trace back to water chemistry errors rather than contagious pathogens:
- Velvet (Oodinium): Look for rapid gill movement and a dusty gold sheen. Soft-water conditions and dim lighting reduce outbreak risk; quarantine all new fish before introduction.
- Fin rot: Even minor fin damage escalates quickly if pH drifts up or water quality slips. Maintain correct parameters and address aggression promptly.
- Internal parasites: More likely in wild-caught specimens; source captive-bred fish and run a precautionary four-to-six-week quarantine.
Health note: medication dosing and disease diagnosis are beyond the scope of a care profile. Many standard aquarium medications are calibrated for neutral or alkaline water and behave unpredictably at pH 4–6. Confirm symptoms against a reputable veterinary or fish-health source before medicating, and check product compatibility with very soft, acidic conditions.
How long does a Wine Red Betta live?
With correct husbandry, 3–5 years. The most common reason for a shortened lifespan is prolonged exposure to water that is too hard or too alkaline, which creates chronic stress even in a fish that appears outwardly healthy. Maintain the blackwater parameters from day one, feed a varied carnivore diet, and a Wine Red Betta will deliver years of spectacular colour.
Frequently asked questions
Can I keep Betta coccina with other fish?
Males are aggressive toward one another and toward similar-looking fish, so keep them in a species tank or with peaceful dither fish that share their blackwater requirements — small rasboras such as Boraras brigittae are a common choice. Never house two males together.
Why does my Wine Red Betta look pale?
Colour fades most often because the water is too hard, too alkaline, or too brightly lit. Betta coccina display their best red in very soft, acidic blackwater with dim, diffused lighting and tannin-stained water from Indian almond leaves or peat filtration.
What you need to keep a wine red betta
The baseline is a heated, filtered 40 L+ tank: a reliable heater to hold 24–28 °C (75–82 °F), a gentle filter that won't batter a wine red betta in the current, and a tight-fitting lid. Cycle the tank fully before adding any fish.
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