Hi guys, anyone have any recommendation to remove Blue-green algae?? my tank suddenly full of Blue-green algae might be because of my dirty filter. Already washed my filter, removed Blue-green algae using tolls (some small chunk fell back in), have Amano shrimps, Red Cherry Shrimps and Oto in it too. Still no reduction of Blue-green algae but growing back... Guess all the shrimps couldn't eat it and filter not removing it either...

Dose nitrate won't that make it worst?

Ow ya, doing 1 day light and 1 day off sequence and 1pm - 8pm, which I guess is low lighting for the plant to grow is that bad? or that is minimum for the plant? tried put 9 hours but mostly have lots of other algae issue..staghorn, hair, Black Beard Algae and green spot algae...

This post has been edited by naoki666: Jan 21 2013, 08:09 PM

Tank dimension: 5x2x1.5 water volume.
Soil: some sea sand plus amazonia.
Light Type: not sure the name, 200+ forgotten.
C02: injected but about 5bps only.

I see sure thanks for the tips i'll try to pump the area. I think you might be right after some checking some area away from the filter does have more BGA blooming compare to the place near it. But the place with sand totally full of it