So I turned on my tanks "night light" which is a 7 watt bulb since I dont have 800 bucks saved up yet for my halides. Anyways I feed my scallop phyto and zoo plankton. WHen I layed down I was staring at my tank waiting to fall asleep when all of the sudden a thing about the length and thickness of a penny started zipping around crazy like in the light. It looked like a sort of miniature squid. Ive also notice small shrimp like things in the tank. Do these zooplanktons grow up in the tank?