Tussy's small red fighter

Where they come from

Betta tussyae is one of those little wild bettas that makes you realize how different the genus is from the big, flashy pet store splendens. They come from southern Thailand, in slow, tannin-stained forest streams and swampy areas with leaf litter and roots everywhere. Think dim light, tea-colored water, and lots of hiding spots.

Setting up their tank

This is an advanced fish mostly because it does not forgive sloppy water chemistry. The best setups I have had were small, species-focused tanks that stayed stable for months at a time. You can keep a pair in a 10 gallon, but more space (15-20) makes behavior and maintenance easier.

• Tank size: 10 gallons for a pair, 15-20 if you want a small group and more line-of-sight breaks
• Temperature: mid to upper 70s F (24-27 C) has worked well for me
• Filter: gentle sponge filter or a baffled HOB, you want movement but not a washing machine
• Lighting: low to moderate, floating plants help a ton
• Hardscape: branches, roots, leaf litter, and caves so they can get out of each other's faces
• Substrate: dark sand or fine gravel (dark makes them feel safer and show better color)

Water chemistry is the make-or-break part. Most folks get the best results with soft, acidic water and a bit of tannin. I have kept them in remineralized RO with botanicals (almond leaves, oak, alder cones) and it made everything easier: calmer fish, better appetite, fewer weird issues.

Lids matter. Like most bettas, they can jump, especially when spooked. Also keep the air above the water warm and humid (a tight lid helps) because they come up to breathe and cold room air can stress them.

What to feed them

They are micro-predators. Mine did best when I fed small live and frozen foods regularly, with pellets as a backup rather than the main diet. If you feed only dry, you will often see slower conditioning and pickier eating.

• Best staples: live baby brine shrimp, grindal worms, microworms, daphnia
• Great frozen options: cyclops, baby brine shrimp, finely chopped bloodworms (sparingly), small mysis if they can handle it
• Dry food: small, high-protein micro pellets, but introduce slowly and do not assume they will take it right away

Watch the female especially. In tight quarters she may eat less if the male is pushy, and you will only notice it if you pay attention at feeding time. I like to spread food across the surface so everybody gets a chance.

How they behave and who they get along with

They are not a community fish in the usual sense. They are relatively small and can be shy, but the male still has that betta attitude. In a well scaped tank they spend a lot of time hovering under leaves, inspecting the bottom, and making quick dashes for food.

• Best kept as: species-only pair or small group with heavy cover
• Male-female: can work well, but have a backup plan if she gets chased too hard
• Multiple males: usually ends in stress unless the tank is large and broken up (even then, expect squabbles)
• Tankmates: I generally skip them; small shrimp may become snacks and busy fish can spook them into hiding

A lot of "aggression" with this fish is really a layout problem. Add more leaf litter, more floating cover, and more sight breaks and you often see the temperature of the tank drop immediately.

Breeding tips

B. tussyae is a mouthbrooder (the male holds the eggs/fry in his mouth), so breeding looks different than the classic bubble nest betta routine. If you get the pair comfortable and well-fed, they may spawn without much fanfare.

• Conditioning: live foods for 1-2 weeks, keep stress low and water very clean
• Setup: quiet tank, lots of cover, gentle filtration, stable warm temps
• Spawning: after the embrace, the male collects and holds the eggs
• Holding period: the male may hide and eat less (or not at all) while holding
• Fry: have tiny foods ready (microworms, baby brine shrimp) depending on fry size at release

Some breeders pull the female after a successful spawn to give the male peace. I have done it both ways. In smaller tanks, separating after spawning usually gives better survival because the male is less likely to be harassed.

Common problems to watch for

Most issues I have seen with this species trace back to three things: unstable water, too much current or light, and social stress. They do not always show problems loudly, they just go off food and fade into the plants.

• Refusing food: often stress, bright light, or too much flow - dim the tank and offer live foods
• Clamped fins and hiding: check for bullying, ammonia/nitrite, and big temp swings
• Fin damage: usually chasing or rough decor - sand down sharp wood and add more cover
• Bloat/constipation: from heavy dry food - switch to daphnia and smaller meals
• White spot-like issues: wild bettas can be touchy with meds - raise temp carefully and research treatment compatibility before dosing

If you want one simple habit that pays off: do small, regular water changes and keep the tank steady. B. tussyae rewards consistency more than any fancy gadget ever will.