I've noticed alot of people using the ASM G3 skimmer, Is the height on the G3 23.5" or 25" as listed from ASM. I only have 25.5" clearance under my tank and could get away with the 23.5" but not a 25" tall unit. Also my tank(75G) volume is only going to be in the 120g range including sump and refugium so would a G2 be more appropriate for this size tank and does the G2 skim well.



