Betta tank size recommendations

[lunarix]

What's the smallest tank size you'd recommend for a single betta? I've seen everything from 2.5 gallons to 10 gallons suggested, but I'm not sure what's actually best for their health and happiness.

[Nutmegs]

Honestly, anything under 5 gallons is sketchy. They need space to swim and explore, and smaller tanks make it harder to keep water params stable. I've kept mine in a 10 gallon, and they're way more active than in the 3 gallon I tried initially.

[RhythmKing]

Yep, bigger is always better. My guy's in a 7.5 gallon, and he's thriving. Plus, it's easier to maintain, less frequent water changes, and you can add some cool plants or tankmates like shrimp.

[Vitaly]

Honestly, anything under 5 gallons is sketchy. They need space to swim and explore, and smaller tanks make it harder to keep water params stable. I've kept mine in a 10 gallon, and they're way more active than in the 3 gallon I tried initially.

Totally agree! I switched from a 2.5 to a 5 gallon, and the difference in behavior was night and day. They're so much happier with more room.

[Ravenox9]

I've got mine in a 20 gallon community tank, and he's the king of the castle. But if you're going solo, 5 gallons is the bare minimum. Anything less is just cruel, imo.

[kokomo]

Gonna chime in here, 5 gallons is the sweet spot. It's big enough for them to chill but not so huge that it's overwhelming. Plus, you can get creative with the scape. My betta loves all the hiding spots I've added.

[SunnySky]

I started with a 3 gallon, but after reading up, I upgraded to a 6 gallon. The difference in water quality alone was worth it. Less ammonia spikes, and my fish is way more vibrant.

[lunarix]

Thanks for the advice, everyone. I'll go with a 5 gallon then. Any tips on filters or heaters for that size?

[finnleye]

Thanks for the advice, everyone. I'll go with a 5 gallon then. Any tips on filters or heaters for that size?

For a 5 gallon, a small sponge filter works great. It's gentle enough for their fins, and you can pair it with a 25 watt heater. I've had no issues with this setup.

[maxxy]

I'd avoid hang-on-back filters for small tanks. They create too much current. Sponge filters are the way to go, and they're cheap too. Heater-wise, go for adjustable ones, not preset.