Hi,

I have had my Aquarium for 11 months, just recently I have had a
Black/Brown (not quite sure which)algae growing on several of the
plants. I have two adult Ansistrus (also loads of tiny babies)but
they only eat the Green Algae.
I do not have excessive levels of nitrate, and the lighting is on 7
hours per day, I am planning on increasing the planting and I want to
prevent the problem naturally (no chemicals) but web searches are
coming up with conflicting opinions. Any tips welcomed. TIA

Jan