Newbie to sw

[sully08]

Originally Posted by Kimmi7

Ok so I have a question about powerheads. How many do you guys use? I see there are some made for bigger aquariums and they arent badly priced. I was thinking tho that having two one on each end would be good to help with feeding corals better then having one going one way. Correct me if I am wrong. Also I will be having everything under the tank and am honestly thinking of a 120 gallon, 48x24x24. So I am unsure how big of a return pump I would need.

I flow about 6000-6500 gallons an hour around my 220g. My return pump is 1500, my closed loop is 2000 and 2 tunze's, one at each end of the tank, for a total of 2700 between both. I find that this is more than enough for me. I have adjusted the flow direction many times to get it perfect to eliminate dead spots. I have talked to some people that would come close to doubling the flow that I have. I don't know how they do it without blowing sand all over the tank. I have found the best way is to bounce flows off of each other and off the glass also helps. My 2 cents