Tank is as follows.
125 litre, 20kgs LR, 2" CC bed, fish as above, 2 x sand shifiting stars, 6 x turbo snails, 4 x emerald crabs, 1 x green button polyp, 1 x green mushroom coral. Lighting is 1 x 35w white flourescent, and 1 x 35 watt blue. Lights are on for 7 hours a day (trying to combat hair...