Water circulation question

[Danno]

Hey all,
I have a 90g reef tank with 2 Koralia #4 pumps, along with my return pump, and
I believe that this is too much because any way that I position them, the flow makes my corals clam up (no pun intended).

I have a power strip that makes one turn on for about 2 minutes and then the other one does the same, but my corals are still being whip lashed.

Should I use the #3's instead? Are there any suggested flow diagrams?
Is a pump at the bottom pointed upward an option?

Thanks!

Dan

 

[DoctaQ]

as far as gph per gallons of volume or turnovers youre fine.
aim the power heads at each other or at walls or corners to break up the flow

 

[Cheetos]

If your corals are mostly softies then you should be fine with 2 K3s or one K4. I had 2 K4s and 2 tunze 6045s in a 4' 120 gal with mostly sps.

 

[Blueflu1]

I have a 90 with two #4's and one #1 and my return and I want more flow. Just find a good place to aim them so they arent directly on your corals.

 

[Behrmon]

Your flow does not sound excessive for that tank, where are they in the tank and where are they pointing?

 

[Cjtabares]

Not to get off topic, but I don't think the koralias are made to go on and off. They may burn out. and the flow seems fine for that tank.

 

[mnavick]

I have a 90g with 2 K3's opposite one another pointing downward, works beautiful.

 

[bonerac]

i have 2 korilla 3's in my 110 with a y-pipe on my return