whats your water exchange rate ???

[koop171]

this is what i got and the numbers i came out with
i got 4 Penguin 1140 Powerheads rated at 300 GPH all hooked up to seperate undergravels, 2 Penguin 350Bs rated at 350 GPH, and 1 FX5 rated at 950 GPH (foam blocks only) or 563 GPH (loaded with media,also my configuration) so at this rate
4@ 300 GPH= 1200 GPH
2@ 350 GPH= 700 GPH
+ 1@ 563 GPH= 563
2463 GPH

so thats 2463 GPH exchange rate on a 125 gal aquarium

2463/125= 19.704

so 19.704 exchanges in one hour

60min in one hour

60/19.704= 3.045

so at this rate with all my epuip my water get cycled every 3.045 mins.
i think thats a good exchange rate and at this rate my amonia level has NEVER been anthing but 0 nitrite 0 but the nitrate is around a 20ppm (i don't get that one )

my math could be off but what do u just got on your setups for water exhange rates ???

 

[Bud8Fan]

Just remember those ratings on the box are usually at zero head with no restrictions. Add some restrictions and head and those numbers drop quickly.

 

[koop171]

restrictions were set for the FX5 but i do not know how to go about the restrictions for the others

so how would i figure restictions and ill redo my math

 

[Bud8Fan]

Here is one for pumps.

http://reefs.org/pumps/

 

[koop171]

with those calculations i only lost 400 GPH and after the math it still was less then 4 min tank cycle 3.635mins. per cycle now unless there is a loss for powerfilters too i think i'm back on track and i think that cycling 125 gals every 3.635 mins is not to shabby

 

[Nic]

220 1700gph or 1300 gph depends on what side im using

 

[Totalimmortal]

I'm running approx. 1000GPH in my 55G.

 

[FSM]

Fluval 404 and QuietOne 3000 on my 75. Thats 340 and 780 gph, respectively, which is 15x turnover. Of course its probably a bit less with the media in there.