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Hello everyone. I’m getting some algae that is kinda wispy and I’m trying to figure out what intensity my light should be at. It’s a 10 gallon tank with montecarlo at the bottom. I do use an aqueon glass cover that might affect how much light. It has a black plastic piece in the middle. What’s a good % of light to use? It’s 12 inches deep and it does have co2. Thanks
 

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I have a 11 gallon cube tank with a WRGB2 30cm. I use it at 50% intensity for all channels, and still feel it slightly too high. Everything grows well including Montecarlo carpet, but some of the higher plants (ludwigia super red) keep having green spot algae on their leaves and just can't get rid of it. Thinking of reducing it a bit and see how it goes.

So I'd say it's safe to start somewhere ~50% and adjust.

I'm waiting to see what others say here too.
 

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I have a wrgb2 on a 5 gallon tank (no co2). I run it around 80%. I get a bit of algae on the glass but none on the plants.
 

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It is a standard rectangle aqueon 5 gallon tank; it is the 30 cm wrgb2. I've had on the tank for about 2 months but this morning i reduced it to 70% (70 red; 49 blue 49 green); to see if that reduces the algae growth on the glass. Of course i'll leave it like this for at least a month to see what happens.
 
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