We'll, thanks

Honestly, don't let anything discourage you. I don't know how many times I sat there and literally just want to sell my tank for how much it ****es me off. DIP YOUR CORALS! If your corals aren't "opening up", Try to add 15lbs of live rock! You'll see them open the next day. My temps are at 84 degrees on a daily bases, so no temp does not matter, but FLUCTUATION does!
Provide plenty of flow to avoid any build up. I have to dose my tank everyday with part A and B :/ (no doser yet). When you "Think" you can't keep a coral because you think your tank is not good enough, we'll buy it anyways! You live and learn everyday with this hobby, and you won't learn till you try something out. Good luck, and thanks again.