hehe - my blenny is a bicolor, too. Becky - I plan on having a skimmer on mine because I figure with all the light, there will be some algae growth, so I'll have some snails in there. I was thinking about having a fish in there, as well....to provide some waste for the corals. Even though they receive the majority of food (talking sps) from light, there still is a small percent that they don't. I'm thinking a couple of powerheads. If a set-up is done like Katrina's, then you will get all your filtration from the main system. My prop tank will be in the basement, so I won't have it tied in.