My 4ft tank has serious hairy algae previously, now they'd almost gone even on the edge of slow growing leaves.
I'd just done below for your reference, BTW, I'm not sure which one is the one...LOL...
1) Strong water flow, no dead cornor.
2) Increase CO2 from 1bps to 2bps
3) 6x39W T5HO, 2x11hrs, 2x6hrs, 2x4hrs, following the sunrise and sunset.
4) 30% water change weekly
5) Fertilize in small amount every two days.
6) SAE is hard working, but their ability is limited.









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