HOW MUCH GPH FOR 300 GALLON TANK?

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azian_kicker

Candiru
MFK Member
Feb 6, 2010
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Im planning to purchase an internal pump for my 80 gallon sump but not sure how much GPH that I need to keep a 300 gallon aquarium crystal clear. I am planning to put about 20 datnoids about 8'' each.

Beside what brand pump do you guys recommend? I'm looking for something extremely quiet, powerful and sturdy. thanks for your advices. How is RIO and magnet? which one should be better ?
 
azian_kicker;4311145; said:
Im planning to purchase an internal pump for my 80 gallon sump but not sure how much GPH that I need to keep a 300 gallon aquarium crystal clear. I am planning to put about 20 datnoids about 8'' each.

Beside what brand pump do you guys recommend? I'm looking for something extremely quiet, powerful and sturdy. thanks for your advices. How is RIO and magnet? which one should be better ?
Click to expand...

300gals (Tank) + 80gals (Sump) = 380 gals.

Considering you want to run 4x turnover then that will be 1520GPH rated pump. But consider the head loss so at least 1900-2000GPH rated pump is enough.

With Overflow pipe @ 2" diameter.

Hope that helps.
 
1500 sounds about right after head pressur, some pumps deal with head pressure better then others so look up a few and see which model puts out the gph you need with the head you have.

I've heard great things about iwaki (japanese motor) I recently bought one but have yet to set everything up. It is an external pump. With higher flow rates they are usually a better way to go.
 
I've always used Quiet One pumps and i've never had a problem with them.. Dr Fosters has them for cheap right now too.. a 6000 (1506gph) $101.59 & 9000 (2328gph) $158.39. Plus they pull less wattage than the iwaki pumps too.
 
GPH is not THE determining factor for keeping a crytal clear tank.
Rather the design and efficeincy of the mechanical filtration components themself determine clarity.
Some jack up the GPH/turnover rate to compensate for inadequate or inefficient mechanical filtration.
This increases the operating expenses unnnecessarily.

I have had good results with Danner Mag-drive and Little Giant pumps.:)

I agree with Nolapete, redundancy is a good thing.
 
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