how to prevent dropsy in Bettas

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tides_roll
Posts: 9
Joined: Sun Jun 11, 2023 7:58 am

how to prevent dropsy in Bettas

Post by tides_roll »

I've been keeping bettas for a while now, but dropsy still freaks me out. What's the best way to prevent it? My tank's a 5-gallon with a sponge filter, heated to 78F, and I do weekly 25% water changes. Just wanna make sure I'm not missing anything.
joeboy9
Posts: 10
Joined: Thu Oct 10, 2024 5:35 pm

Re: how to prevent dropsy in Bettas

Post by joeboy9 »

Dropsy's usually a sign of poor water quality or stress. You're on the right track with the water changes, but maybe bump it up to twice a week if you can. Also, check your params—ammonia and nitrites should always be zero, and nitrates under 20ppm. A balanced diet helps too, don't overfeed.
flour
Posts: 4
Joined: Thu Oct 10, 2024 4:27 pm

Re: how to prevent dropsy in Bettas

Post by flour »

joeboy9 wrote: Sun Aug 03, 2025 12:47 am Dropsy's usually a sign of poor water quality or stress. You're on the right track with the water changes, but maybe bump it up to twice a week if you can. Also, check your params—ammonia and nitrites should always be zero, and nitrates under 20ppm. A balanced diet helps too, don't overfeed.
Yep, totally agree. I've had success with adding a bit of aquarium salt during water changes, just a teaspoon per gallon. It's helped keep my fish chill and healthy.
harmony
Posts: 2
Joined: Thu Oct 10, 2024 9:22 pm

Re: how to prevent dropsy in Bettas

Post by harmony »

My dude got dropsy once, and it was sketchy. Turns out the filter was too strong, stressing him out. Switched to a gentler one, and he's been golden since. Maybe check if your flow's too intense?
Fenririx
Posts: 5
Joined: Sun Mar 24, 2024 9:56 am

Re: how to prevent dropsy in Bettas

Post by Fenririx »

I'm new to this, but my LFS told me to avoid overfeeding. They said bloating can lead to dropsy. I feed mine 2-3 pellets twice a day, and he's doing great. Also, keep the tank clean, like everyone's saying.
tides_roll
Posts: 9
Joined: Sun Jun 11, 2023 7:58 am

Re: how to prevent dropsy in Bettas

Post by tides_roll »

Thanks for the tips, everyone. Gonna test my water more often and maybe tweak the feeding routine. Appreciate it!
joeboy9
Posts: 10
Joined: Thu Oct 10, 2024 5:35 pm

Re: how to prevent dropsy in Bettas

Post by joeboy9 »

harmony wrote: Sun Aug 03, 2025 2:21 am My dude got dropsy once, and it was sketchy. Turns out the filter was too strong, stressing him out. Switched to a gentler one, and he's been golden since. Maybe check if your flow's too intense?
Good point! Bettas hate strong currents. If your sponge filter's too much, try baffling it with a piece of sponge or a water bottle cut to diffuse the flow.
flour
Posts: 4
Joined: Thu Oct 10, 2024 4:27 pm

Re: how to prevent dropsy in Bettas

Post by flour »

Another thing—stress can come from tankmates. If you've got other fish in there, make sure they're not bullying your betta. Mine's solo, and he's way happier that way.
harmony
Posts: 2
Joined: Thu Oct 10, 2024 9:22 pm

Re: how to prevent dropsy in Bettas

Post by harmony »

flour wrote: Sun Aug 03, 2025 7:29 am Another thing—stress can come from tankmates. If you've got other fish in there, make sure they're not bullying your betta. Mine's solo, and he's way happier that way.
True that. My guy was in with some tetras, and they were nipping his fins. Moved him to his own tank, and he's thriving now.
Fenririx
Posts: 5
Joined: Sun Mar 24, 2024 9:56 am

Re: how to prevent dropsy in Bettas

Post by Fenririx »

How often do you guys test your water? I've been doing it weekly, but wondering if that's enough.
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