Too much flow???

They sometimes make noise turning off and on. Mine crackle a bit turning on - I'd get sick of that, but it's all up to you

 

So, doing the math....

Seio m2600 x2 = 5200gph
Koralia-3 x2 = 1700gph
Koralia-2 x2 = 1200gph

Total = 8100gph in 75g.....108x

Hmmmmm. Well. I usually recommend around 50 to 60 tops. I have heard of people on the forum running 80x plus. Personally, I think it is a bit much....but as long as nothing is dying on you and everything seems happy and healthy....

The only thing I would caution is the stirring of your sandbed. Once it is mature, it is best left undisturbed.

I would take the Koralias off the wavemaker, as previously mentioned by another poster. They will eventually burn out. With that much flow in your tank, I think a wavemaker is probably redundant. You have so much current and counter current in that tank of yours, I don't really see the benefit with the amount of flow you have. JMO.

Peace.......John.

 

Pharm
Thanks for the math calc, just what I was looking for.