i was thinking of doing a grow out tank with some corals and i was thinking of having a refugium/sump that is actually larger than the grow out tank. i figured that it would have superior water quality all the time and also it would have small copepods and amphipods abundant for corals that would eat them. i was thinking like a 20 gal long and maybe a 30-40 gallon refugium/sump. is it a good idea or not, and are there any suggestions or maybe things I've missed. it wouldn't be a display tank just a grow out tank.:ooh: