I currently have a 135 fish only and am about to upgrade to a 300 gallon wide. The current tank is not drilled and I gave up on a sump a long time ago after trying several different methods and it always overflowed so I got tired of it. This one is going to be drilled and done right. So currently all I have are a blue hippo, lunar wrasse, lemon peel angel and an arch eye hawkfish. My blue eye kole tang and sailfin tang randomly disappeared after having them for 5 years. I have no idea why but I was really upset about that. I'm going to trade in my lunar wrasse to the fish store where I'm going to be buying my new fish and where I'm going to order my new tank from because I'd like to have coral in the future. What I am wanting to do is buy some of the new fish I want and have them all in quarantine and being preventively treated to be put into the new tank at the same time as my old fish so there's no aggression since they will all go into the new tank together. I hadn't bought a new fish in a while because my old fish attacked and killed the last couple new fish I tried to put in there. I always quarantine and treat with cupramine and prazipro. The new fish I am wanting are orange shoulder tang, mimic lemon peel tang, powder blue tang, exquisite fairy wrasse, mckoskers fairy wrasse and 3 anthias. Haven't totally decided on the anthias yet. I'm wondering how many quarantine tanks do you think I should set up and what size quarantine tanks. Also. My new tank has to go in the spot where my old tank is. So when I put the new tank up and move all my live rock to the new tank do you think I'd be able to put all the fish in it immediately or would I need to put my old fish in another quarantine tank and let the new tank cycle? I'm sure I know what the answer is just want to get opinions if anybody else has upgraded a tank and put everything into the new tank the same day. And does anybody have any experience with a lemon peel angel in a reef system to know if they pick at coral or not?