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how to choose the right Betta tank size
Posted: Sat Jun 28, 2025 3:27 am
by flier_kit
I'm setting up a new tank for my betta and wanna make sure I get the size right. He's a halfmoon, pretty active, and I've heard conflicting advice on minimum gallons. What's the real deal?
Re: how to choose the right Betta tank size
Posted: Sat Jun 28, 2025 4:29 am
by reefknight
A 5-gallon tank is the bare minimum for a betta, but if you can go bigger, do it. They thrive in larger spaces, and a 10-gallon gives them more room to explore. Just make sure it's heated and filtered.
Re: how to choose the right Betta tank size
Posted: Sat Jun 28, 2025 6:13 am
by toxikid
Yeah, 5 gallons is cool, but bigger is always better. My dude's in a 10-gallon, and he's living his best life. Plus, you can add some chill tankmates like snails or shrimp if you've got the space.
Re: how to choose the right Betta tank size
Posted: Sat Jun 28, 2025 8:07 am
by stormy9
reefknight wrote: ↑Sat Jun 28, 2025 4:29 am
A 5-gallon tank is the bare minimum for a betta, but if you can go bigger, do it. They thrive in larger spaces, and a 10-gallon gives them more room to explore. Just make sure it's heated and filtered.
Totally agree. A bigger tank also means more stable water params, which is key for their health.
Re: how to choose the right Betta tank size
Posted: Sat Jun 28, 2025 9:47 am
by flier_kit
Thanks for the input, everyone. I think I'll go with a 10-gallon then. Any tips on decor? I want to make sure he's got plenty of hiding spots.
Re: how to choose the right Betta tank size
Posted: Sat Jun 28, 2025 11:04 am
by reefzone
Soft plants like java fern or anubias are great. Avoid sharp edges on decor since their fins are delicate. A couple of caves or driftwood pieces can give him places to chill.
Re: how to choose the right Betta tank size
Posted: Sat Jun 28, 2025 12:58 pm
by fusionist
I'd also recommend a gentle filter. Bettas don't like strong currents, so a sponge filter or adjustable flow works best. Keeps the water clean without stressing them out.
Re: how to choose the right Betta tank size
Posted: Sat Jun 28, 2025 1:31 pm
by foluxe
What about lighting? Does it matter much for the tank size?
Re: how to choose the right Betta tank size
Posted: Sat Jun 28, 2025 1:58 pm
by toxikid
fusionist wrote: ↑Sat Jun 28, 2025 12:58 pm
I'd also recommend a gentle filter. Bettas don't like strong currents, so a sponge filter or adjustable flow works best. Keeps the water clean without stressing them out.
Yep, and for lighting, just keep it moderate. Too bright can stress them out, especially if they don't have enough cover.
Re: how to choose the right Betta tank size
Posted: Sat Jun 28, 2025 2:05 pm
by RiverOtter_7
I've got a 5-gallon with a betta and a snail. Works fine, but I do weekly water changes to keep things clean. Might upgrade to a 10-gallon soon though.