Well some of the cleanup crew package can be eliminated and change as you go on. Like in my 55 gallon reef tank, I have 2 exotic hermits, 4 blue leg hermits, 1 scarlet hermit, 4 Astrea Snails, 1 Black Turbo Snail, 7 Nassarius Snails, 10 Cerith Snails, and 1 Peppermint Shrimp. They keep my tank bottom spotless, but the glass still needs some work, I keep the front and the sides scrubbed, but they need to clean the bottom line. I personally think I have a bit too many so once I get a new tank set up, some are moving out. They can't go into my aggressive tank cause my Trigger would eat them up. Thinking about a new tank this summer.... :happyfish
