Betta fish and water clarity

The sub forum dedicated to one of the most incredible fish in our hobby. Betta ask your questions in here!
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Aquilox
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Joined: Thu Apr 21, 2022 11:26 pm

Betta fish and water clarity

Post by Aquilox »

My betta's tank water keeps getting cloudy after a few days, even with regular water changes. I'm using a sponge filter, and params are 0 ammonia, 0 nitrite, 5 nitrate. What's the deal?
leestone
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Joined: Thu Oct 10, 2024 8:18 pm

Re: Betta fish and water clarity

Post by leestone »

How often are you changing the water? And what's the tank size? Could be overfeeding or too much light.
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alandon
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Joined: Fri Dec 22, 2023 7:37 am

Re: Betta fish and water clarity

Post by alandon »

Cloudy water can be bacterial blooms. If you're changing water too often, you might be disrupting the cycle. Try reducing changes to 20% weekly and see if it stabilizes.
MagicPigeons
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Joined: Thu Oct 10, 2024 3:32 pm

Re: Betta fish and water clarity

Post by MagicPigeons »

Aquilox wrote: Wed Jun 25, 2025 2:21 pm My betta's tank water keeps getting cloudy after a few days, even with regular water changes. I'm using a sponge filter, and params are 0 ammonia, 0 nitrite, 5 nitrate. What's the deal?
What's your substrate? Fine sand can sometimes kick up and cause cloudiness if disturbed.
microsis
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Joined: Thu Oct 10, 2024 9:04 pm

Re: Betta fish and water clarity

Post by microsis »

I had the same issue until I cut back on feeding. Those little guys don't need much, and leftover food can mess with the water big time.
oakleye
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Joined: Fri May 03, 2024 12:56 am

Re: Betta fish and water clarity

Post by oakleye »

Yeah, overfeeding's a common culprit. Maybe try fasting for a day or two and see if it clears up.
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EpaPuff
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Joined: Thu Oct 10, 2024 1:15 am

Re: Betta fish and water clarity

Post by EpaPuff »

You using any water clarifiers? Some of 'em work wonders, but others are just snake oil. Gotta read reviews first.
mikero
Posts: 8
Joined: Wed Jan 17, 2024 5:05 pm

Re: Betta fish and water clarity

Post by mikero »

Bacterial blooms are usually white or grayish. If it's green, you've got algae, which means too much light or nutrients. What's your lighting schedule?
turtlego
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Joined: Thu Oct 10, 2024 5:10 pm

Re: Betta fish and water clarity

Post by turtlego »

microsis wrote: Wed Jun 25, 2025 4:52 pm I had the same issue until I cut back on feeding. Those little guys don't need much, and leftover food can mess with the water big time.
For real, bettas are like tiny garbage disposals. They'll eat anything you throw in, but it doesn't mean they should.
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kindlux
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Joined: Thu Feb 10, 2022 2:49 pm

Re: Betta fish and water clarity

Post by kindlux »

Tank size matters too. Smaller tanks get dirty faster. What's the gallon count?
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