How important is a clean up crew? I have a new rebuild of a tank with plenty of live rock, a few hitch-hiker crabs, tiny bristle star fish, and snails. I am experiencing an algae bloom on the glass and on some of the sand that doesn't have as much water flow and am wondering how important a clean up crew will need to be. I am planning on adding the remaining corals and fish tonight or this weekend. attached is the tank as is (210dt w 40g breeder sump). Fish will include a large scat, bicolor angel, flame back angel and 2 pajama cardinals. Corals to be added are primarily SPS type. Current corals appear to be thriving as CA and ALk are decreasing- I am trying to get on top of daily adding this to keep up with the demand. Sorry for the blurring pic - should give you an idea of what my tank is, and more accurately what kind of photographer I am.