reto 700 gal

[falconred]

iam redoing this tank new wet dry and return pump. how big of a pump ? how much water movment in tank power heads

 

[tony detroit]

7000 gal. per hour total system turnover or more.

 

[bullshark]

As tony stated above, 7000gph. This is based on the general rule of thumb:
10X turnover for FO tanks
15X-20X turnover for reef tanks
You may also want to do a bit of reading up on 'closed loop' systems for more water flow in tank. More expensive than powerheads, but way more cool, IMO.
Good Luck, wich I could fit a 700 in my house.

 

[tvan]

I depends on your setup. If your filtration quality is high you don't need to turn over the water as often. Also If you have live rock or a DSB in the main tank filtration is already in the tank, circulate for gas exchange. If you have live coral that requires strong current you can add surge devices. Or you can install multible pumps for chillers, protien skimmers, or diferent types of filters.
JMO
Tom