ive got a 24x12x14 lit by 1 nanocustoms par 38 4rbx1w a grassy leDio 3wx4b and a chinese 3w blue led my params are fine its a fairly new tank temp stays between 76-77 via RKL, SG 1.024-1.025, flow prvided by vortech mp20 , running ehiem liberty 150 for filtration, using H2Ocean pro salt mix