Powerhead

Not too much at all. I would add more.
In my 10 gallon i have 150-200 gph coming out of my return pump, then a 50 gph powerhead, a 100 gph powerhead, and a 400 gph powerhead.
You wont go overboard as long as you don't put direct flow on something. :P
 
Not too much at all. I would add more.
In my 10 gallon i have 150-200 gph coming out of my return pump, then a 50 gph powerhead, a 100 gph powerhead, and a 400 gph powerhead.
You wont go overboard as long as you don't put direct flow on something. :P

Wow you have way too much flow. It must be like hurricane force in that tank. You have 60x turnover. You want like 30 at most. I have 24x turnover.
 
Wow you have way too much flow. It must be like hurricane force in that tank. You have 60x turnover. You want like 30 at most. I have 24x turnover.
alot? yes. Too much? absolutely not.
I've had up to 85 and it honestly wasn't too much. I keep mostly sps, but i keep plenty of lps and zoos in areas with less flow, and even in higher flow without a problem.
A lot of people say you want at least 20X for a reef tank, but IMO/IME, that is waaaaay too little, especially when you are keeping sps.
As long as you don't have a powerhead pointing at something and preventing it from opening, it isn't too much.
 
FWIW, I have around 160x turnover in my 75, or ~12500 gph. You can't have too much of the right kind of flow. I still have LPS that are recovering nicely in this kind of flow.
 
I have 40X flow in my 75 with just the 2 Seio 1500's not counting the return flow.

SPS don't need to be hammered with any kind flow wether it be laminar or dispersed. Excess flow for SPS, only causes the coral to grow thicker.

SPS just needs random flow in the range of 15-20x. Mind you, more flow will not hurt, It just causes the coral to grow thicker or (beef up) to handle the forces of water flow that are acting on it.
 
Yes, but the thicker branches do make for a more natural display as opposed to spindly ones often found in tanks with relatively deficient flow. Also, overall growth rates are increased with an increase in flow.
 
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