yeah i had to get halide for my 40 gallon....the funny thing about my halide is that there is no heat what so ever coming from the fixture...of course i have a really good fan on it...the hallides make such a difference...my lighting scedule is 10 a.m[175 watt 14k halide turns on] 1:45p.m 130 watt pcs turn on] 2:30[halide turns off] 7p.m pcs off, nocturnal leds on.....so bassically i my lighting cycle consists of 9 hrs of total lighting roughly [4 hrs. halide] [5 hrs. pc]...i have around 20 various corals[some high light,some low] and a total of 8 fish[sailfin tang,gold stripe maroon clown,dwarf flame angel,six line wrasse,3 green chromis,firefish....and various inverts and a cleaner shrimp...my tank looks amazing and everything is extremly healthy at the moment...i also bought a uv sterilizer a couple months back,and it is amazing.....