Betta fish and disease monitoring

The sub forum dedicated to one of the most incredible fish in our hobby. Betta ask your questions in here!
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rivetax
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Joined: Wed Oct 09, 2024 9:19 pm

Betta fish and disease monitoring

Post by rivetax »

My betta's been acting kinda sketchy lately, like he's not eating much and just chills at the bottom. Water params are good, 0 ammonia, 0 nitrite, 10 nitrate. Tank's a 5 gallon with a sponge filter, heated to 78. Anyone got ideas what's up?
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flakeon
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Joined: Thu Oct 10, 2024 4:53 am

Re: Betta fish and disease monitoring

Post by flakeon »

Sounds like it could be early signs of swim bladder disease or maybe stress. How often do you do water changes? And what's the tank's decor like? Too much clutter can stress them out. I'd recommend checking the temp consistency too, sometimes heaters fail.
fusioncore
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Joined: Thu Oct 10, 2024 7:01 pm

Re: Betta fish and disease monitoring

Post by fusioncore »

Yep, my guy did the same thing last month. Turned out the heater was busted and the temp was dropping at night. Got a new one and he perked right up. Maybe try a different heater brand?
eolix7
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Joined: Tue Apr 09, 2024 6:37 pm

Re: Betta fish and disease monitoring

Post by eolix7 »

fusioncore wrote: Tue Aug 19, 2025 11:40 am Yep, my guy did the same thing last month. Turned out the heater was busted and the temp was dropping at night. Got a new one and he perked right up. Maybe try a different heater brand?
That's a good point. I've had issues with cheap heaters before. What brand are you using now?
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lovemylabs
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Re: Betta fish and disease monitoring

Post by lovemylabs »

Could also be a bacterial infection. I'd try adding some aquarium salt and see if that helps. Just a teaspoon per gallon, dissolved first. Keep an eye on his fins too, if they start looking ragged, it might be fin rot.
HavenQuest
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Joined: Thu Oct 10, 2024 8:35 pm

Re: Betta fish and disease monitoring

Post by HavenQuest »

Agree with the salt suggestion. Also, how's the lighting? Too much light can stress them out. I keep mine on a 6-hour cycle with a timer. And what's his diet like? Variety is key, try mixing in frozen or live food if you're just doing pellets.
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gildfish
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Re: Betta fish and disease monitoring

Post by gildfish »

Man, bettas are such drama queens sometimes. Mine once refused to eat for a week because I moved his favorite leaf. But yeah, check the heater and maybe try some salt. Hope he perks up soon!
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rivetax
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Joined: Wed Oct 09, 2024 9:19 pm

Re: Betta fish and disease monitoring

Post by rivetax »

Thanks for the tips, everyone. Gonna test the heater with a separate thermometer and try the salt. He's on pellets but I'll grab some frozen bloodworms too. Appreciate it!
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flakeon
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Re: Betta fish and disease monitoring

Post by flakeon »

rivetax wrote: Tue Aug 19, 2025 4:04 pm Thanks for the tips, everyone. Gonna test the heater with a separate thermometer and try the salt. He's on pellets but I'll grab some frozen bloodworms too. Appreciate it!
No problem. Keep us posted on how he does. Sometimes it's just a weird phase they go through.
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lovemylabs
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Re: Betta fish and disease monitoring

Post by lovemylabs »

Yeah, bloodworms are a great addition. Just don't overdo it, they're kinda like junk food for bettas. Once or twice a week is plenty. And make sure they're thawed properly before feeding.
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