Green algae bloom - water change or wait?

maxemorris

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I thought it was a bacteria bloom until I changed my lights to white. Ammonia, nitrite, and nitrate are all normal, as well as salinity and temperature.

All my livestock looks healthy, and I do a water change with gravel vac and clean the filtration materials (in saltwater) weekly.

Should I do a water change or wait it out?
 

LPS Bum

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A UV sterilizer (even the cheap ones on Amazon) will clear up the green water. The rock is a different story. CUC can help but I’ve had a lot of success with H202 dosing and manual siphoning. If possible, reducing photoperiod and intensity with your lights will help too.
 
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maxemorris

maxemorris

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A UV sterilizer (even the cheap ones on Amazon) will clear up the green water. The rock is a different story. CUC can help but I’ve had a lot of success with H202 dosing and manual siphoning. If possible, reducing photoperiod and intensity with your lights will help too.
The rocks are relatively clean, I have 10 trochus snails and a tiger conch in there currently
 
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maxemorris

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Do you guys have recommendations on a UV sterilizer? I’ve used the green killing machine before
 

Jungle Blue

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Tbh copepods love this stuff. If you don’t mind it visually for a bit and have some pods in your tank already, they’ll feast and help clear it out while giving you and your fish a huge population boom.
Things comes in cycles.
 

Mr. Mojo Rising

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I follow the BRS recommended settings for the AI prime, and I have the intensity at 70% of their recommended settings. I’ve trimmed down the schedule to 6 hours
Your prime is at 70% on a 33 gallon tank? I have AI Prime on a 15 gallon, 12" depth, softie tank, mainly mushrooms and zoa's, the light is set at 70% for 10 hours peak time. Once you get corals in the tank, crank the light up or the corals will struggle.
 

LPS Bum

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Do you guys have recommendations on a UV sterilizer? I’ve used the green killing machine before
I have the Coodia UV from Amazon. It’s cheap, small and submersible. Did a great job on my green water when I first set up my reef. Also works well with bacterial blooms.
 

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