Hi everyone I like to do a yellow tang 1 blue tang 1 butterfly 1 clowns 2 demsal any idea on fish I can stock make a nice community tank ill medium size fish and going with a 150 gallon tank just can't decide internal overflow or external refugium sump or berlin sump Mr d said refugium if I'm doing a reef want to dart lfwr then had corals any idea's any bin in hobby 10 to 20 years