betta fish and disease quarantine

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Sweetie
Posts: 9
Joined: Sun Jan 07, 2024 12:44 am

betta fish and disease quarantine

Post by Sweetie »

Just got a new betta and wanna make sure I'm doing quarantine right. Got a 5-gallon tank, sponge filter, and heater set to 78. How long should I keep him isolated before adding to my main tank? Also, any signs I should watch for?
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flamberg
Posts: 23
Joined: Sun May 01, 2022 6:21 pm

Re: betta fish and disease quarantine

Post by flamberg »

Quarantine is sketchy if you don't do it right. I'd say at least two weeks, but some folks go a month. Watch for weird vibes like clamped fins or sluggishness. My last one had ich, so I'm paranoid now.
RiverGuide
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Joined: Thu Oct 10, 2024 9:28 pm

Re: betta fish and disease quarantine

Post by RiverGuide »

flamberg wrote: Fri Aug 15, 2025 6:09 pm Quarantine is sketchy if you don't do it right. I'd say at least two weeks, but some folks go a month. Watch for weird vibes like clamped fins or sluggishness. My last one had ich, so I'm paranoid now.
Yep, two weeks is solid. I use a bare-bottom tank for quarantine, easier to clean. Also, check for white spots or frayed fins daily.
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lummox
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Re: betta fish and disease quarantine

Post by lummox »

I agree with the two-week minimum. My guy had fin rot once, so now I always add a bit of aquarium salt during quarantine. Seems to help keep things chill.
Sweetie
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Joined: Sun Jan 07, 2024 12:44 am

Re: betta fish and disease quarantine

Post by Sweetie »

Thanks for the tips, everyone. Gonna set up the quarantine tank tonight and keep an eye out for those signs. Appreciate it!
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flamberg
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Re: betta fish and disease quarantine

Post by flamberg »

No prob. Just don't skip the water changes, even in quarantine. Dirty water messes with their immune system. I do 25% every three days.
RiverGuide
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Joined: Thu Oct 10, 2024 9:28 pm

Re: betta fish and disease quarantine

Post by RiverGuide »

flamberg wrote: Fri Aug 15, 2025 10:19 pm No prob. Just don't skip the water changes, even in quarantine. Dirty water messes with their immune system. I do 25% every three days.
That's a good point. I also test the water params daily, just to be safe. Ammonia spikes can happen fast in small tanks.
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lummox
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Joined: Wed Oct 09, 2024 11:11 pm

Re: betta fish and disease quarantine

Post by lummox »

Yeah, small tanks are tricky. I use a sponge filter and keep the flow low so the betta doesn't get stressed. Stress makes 'em more likely to get sick.
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