just wondering if i could add invertebrates yet, I have a 55gal with a protien skimmer and a penguin 550 filter, and 2 power heads. I only have about 15lb of live rock so far, i was thinking of mabey just a cheap anemone, I only have 2 40watt daytime bulbs, does anyone know if they could survive with that little live rock and just those lights. the tank has been established for 8 monthes, just not enough money for all the live rock and lites yet??