How much water movement

[guppie]

I am in the process of setting up my first reef tank, I have had fo tanks for over 25 yrs. I have a 29 with 30 pounds of lr, I am trying to figure out how much water movement most corals need? Right now I have 2 rio's 800 in the tank and I was thinking that is to much. Also where do you place them to get the most out of them? I know in my fo I put them high and low. Thanks for the info in advance.

 

[green mariner]

The general rule of thumb is turn over the tank volume 10x an hour. Personally mine turns over aprox.24 times an hour, your milage may vary!!
HTH

 

[burnnspy]

Yah, Im running about 16X an hour. I recommend 3 powerheads and 1 good powerfilter.
I run the powerheads 1 in each corner and 1 in the middle facing the front glass. The powerfilter runs from side to side. This give you some needed turbulence too.
BurnNSpy