Hello everyone, I just re-entered this hobby again on Christmas, my wife purchased a used 90gallon tank for me. I used to be in the lifestlye back about 8yrs ago and for some reason gave it up. Back for the long haul now. I used to have several tanks 125, 55, (2)20h and a 40 long. All salt of course. never had a sump in any of them all with external filtration, thats right 5 of everything, (protein skimmers, heaters, canister filters). And more live rock than I care to talk about. All of my tanks were fish only. I used to have one of my 20h in my bedroom and I used to wake up in the morning finding my snowflake moray eel on the carpet all dried up, i'd just throw him back in the tank and he would be good. I am one to read any book I can get my hands on. My current tank the 90 is up and running with 100lbs of live rock and a 20L sump with 2 young percula clowns. flame hawk. extra large yellow tang. small sailfin tang. and a medium blue angel,,, yellow tang keeps that ego in check on the angel.