Dubbin1
Active member
Well I couldn't help but plug in the 620 that Ben donated today and all I have to say is WOW these things are impressive. I think 2 or 3 of these in a 75g would be plenty of flow for most corals. Another nice thing about the 620 is the low amount of power that they use (1/2 of what a MJ1200 uses with twice the flow).