I have 55g sw FO tank I been running for about four years now and I want to increase my water quality and possibly convert to reef tank. I have the dreaded crushed coral and an undergravel filter with two powerheads on either side with two HOB canister filters with bio wheels. The crushed coral is a total eyesore and hassle. I want to use sand and been reading alot on how to use play sand and a little live sand. I have a big chunk of LR but not nearly enough of what I should. My question is what should I do with my fish when I remove the crushed coral and put down sand? Will they be alright in the tank? Also I searched the web and can't seem to find a decent explaination on how to make a sump with an old smaller tank without any holes drilled in my main tank. What kind of skimmer should I buy? Any info or feedback would GREATLY be appreciated.



