+1 for ASM, I don't think I have used a better powerhouse than these skimmers, They are old and don't look as cool but they preform, and the ability to not worry about the water level is the best part about them.There are simmers that have been good for 20+ years and still are as good, or better, than anything out there. Why not consider one of those? Any old ASM or EuroReef body with a new Sicce PSK pump are outstanding. LifeReef are excellent. Tunze make great in-sump skimmers (not the square in-tank ones).