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i have been in this hobby for 3 years now and i never seen any algae in my tank beside black spot algae, which covers the leaves and make them look dark instead of healthy green color. no matter what i did it is still there, with ei dosing, high co2 nothing seems to work on it.

IMO i blame the lights, T5HO isn't that great at all as people believe, i agree its energy saver and produce more light, but i did not have spot algae when i used to use PC fixtures in the past, i even have the t5ho lifted 28" away from substrate but still no luck.










 

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Have you tried adding additional KH2PO4? I used to have alot of green spot algae on driftwood and Java Ferns using 3x25 watt T8s on a 46 gallon bowfront. That was when I thought starving the tank of phosphates was the thing to do.
 

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Tírëd Äßóût ╦σ RÉ├írë.
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Extra po4 will not hurt your plants but helps to get rid of spotted algae....I 110% agree with PC is better as compared to T5HO.

Go back to Dry dosing instead of playing with diluted fert...
 
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