#ed_op#DIV#ed_cl#I'm currently "borrowing" 2 of the T5 lights (one white and one blue) from my future 120g. Managed to stand it on top of the 50g tank cover. Now it shines directly down on my one and only clam. I've also got a clump of weeds (someone gave it to me) in a "stick on the side of the tank" container. Also receiving light from the T5. Don't know what kind of weed it is - it's got fine strands and clumps in a ball, no roots, no stem etc. It is meant to go into the refugium of the new tank. Are these weeds recommended for the refugium ? I know cheto (sp) is recommended, but don't know how they look like !#ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl#It's been about a week and I cannot see any difference in the nitrate level - maybe the clam and weed is too small ? Clam is about 3 inches in length.#ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#/DIV#ed_cl#