why is my water cloudy with plants?

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Finleya
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Joined: Thu Oct 10, 2024 12:44 am

why is my water cloudy with plants?

Post by Finleya »

My tank water turned cloudy after adding new plants. It's a 20 gallon with Java Fern and Anubias, substrate is gravel. Filter is a HOB, been running for 3 months. Water params are 0 ammonia, 0 nitrite, 10 nitrate. Lights are on 8 hours a day. What's going on?
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kokomo
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Re: why is my water cloudy with plants?

Post by kokomo »

Sounds like a bacterial bloom, happens when you add new plants. They can bring in extra organics. How often you doing water changes? Might wanna bump it to twice a week for a bit. Also, check if your filter media needs cleaning.
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tiderun
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Re: why is my water cloudy with plants?

Post by tiderun »

Finleya wrote: Tue Apr 29, 2025 1:20 pm My tank water turned cloudy after adding new plants. It's a 20 gallon with Java Fern and Anubias, substrate is gravel. Filter is a HOB, been running for 3 months. Water params are 0 ammonia, 0 nitrite, 10 nitrate. Lights are on 8 hours a day. What's going on?
Yep, classic bacterial bloom. Had the same thing happen when I added Crypts to my 40 breeder. It'll clear up in a few days if you keep up with water changes. Don't mess with the filter too much, though, or you'll crash your cycle.
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dayton
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Re: why is my water cloudy with plants?

Post by dayton »

Could also be dust from the substrate if you didn't rinse the plants well. I've seen that cloud things up real bad. What kind of gravel you using? Some of the cheaper stuff leaches fines for weeks.
angler_09
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Joined: Thu Oct 10, 2024 5:20 pm

Re: why is my water cloudy with plants?

Post by angler_09 »

Bacterial blooms are common with new plants, but your params look solid. How's the flow in your tank? Low flow can let debris settle. Might wanna tweak your HOB output or add a small powerhead if it's stagnant.
dusker
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Joined: Thu Oct 10, 2024 6:36 pm

Re: why is my water cloudy with plants?

Post by dusker »

Monitor your ammonia levels closely for the next few days. Even if it's zero now, the bloom can cause spikes. If it gets worse, consider a partial blackout for 24 hours to slow the bacteria down.
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Finleya
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Re: why is my water cloudy with plants?

Post by Finleya »

Thanks for the advice, everyone. I'll try increasing water changes and check the filter. Gravel is CaribSea, rinsed it pretty well but maybe not enough. Flow seems decent, but I'll keep an eye on it.
maplesyd
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Joined: Sun Jun 30, 2024 4:56 am

Re: why is my water cloudy with plants?

Post by maplesyd »

kokomo wrote: Tue Apr 29, 2025 2:19 pm Sounds like a bacterial bloom, happens when you add new plants. They can bring in extra organics. How often you doing water changes? Might wanna bump it to twice a week for a bit. Also, check if your filter media needs cleaning.
Agreed. I'd also add some Seachem Stability to boost your beneficial bacteria. Helps speed up the clearing process.
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adapros
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Joined: Mon Apr 11, 2022 5:57 am

Re: why is my water cloudy with plants?

Post by adapros »

Yo, same thing happened to me last month. Cloudy water for days, but it chilled out after I cut back on feeding. You overfeeding your fish? Extra food can fuel the bloom.
kaidos
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Joined: Thu Oct 10, 2024 4:08 pm

Re: why is my water cloudy with plants?

Post by kaidos »

If it's still cloudy after a week, might be worth checking your tap water. Sometimes there's weird stuff in there that reacts with the tank. You using a water conditioner?
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