I have some mushrooms and at the time i cannot think of what they are called , they are a brownish color and at times get a light greenish color to the centers , if that gives anyone an idea what they are , there are a cluster of the about 15 to 20 of them ranging from 3 to 4 inches round to maybe 5 . i have the phytoplex and how often should i be feeding them. they are sitting about 1 foot to a foot and a half , rough or bad measurement there just estimating , but they are under compact flourescents that run from 11 am to about 10 pm. is this good to much and is there any extra care that i can do.