I remember Superman telling me that I would see "bugs" come out at night with a red filter on my flashlight.........haven't seen any yet.............would like a mandarin gobie but was told until we get enough critters in the tank for him to eat that it wouldn't be a good idea. That was good advice to me, but was wondering...........when will the tank look like "Joe's Apartment" as the LFS told me it would look (roaches scattering)..........the tank is a month old with plenty of live rock and current..........................48 gallon.