So, there's green stuff growing on my hygroton. At first, I thought it was my nutes staining the ricks green, but alas, I now believe it to be algae.
(see the pics)
I'm sure those of you who use hydro have seen this before.
Should I worry about it, and if so, how do I kill it? I've heard about people covering their rocks with white styro-foam plates to block out the light.
hmm... Guess I'll call the hydro shop and see what they think.
