where do i find the problem form?
my plant is growing in two thin Styrofoam squares with a small bucket for a fish tank plant filled with rocks.

http://www.dkimages.com/discover/previews/743/69090.JPG its in the thing this plant is in but there are rocks in it
fred666777 Reviewed by fred666777 on . new to hydro having problems i just started growing hydro in a 10 or 20 gal fish tank and it was going well until about a week ago. in the tank i have some fish tank lights my friend gave to me and they seem to be working i don't know what they are. a small computer fan in the top and a small air pump and a bubble stone. the leaves first started to turn a kind of yellow then started to turn brown and dry. i added more water and made the ph exactly 7 and it seemed to work itself out. now the leaves are yellow and kind of Rating: 5