Tropical Fish Keeping - Aquarium fish care and resources

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-   -   Eheim Pro3 #2075 - too much for a 55 gallon? (http://www.tropicalfishkeeping.com/beginner-freshwater-aquarium/eheim-pro3-2075-too-much-55-a-95581/)

DKRST 03-08-2012 04:00 PM

Eheim Pro3 #2075 - too much for a 55 gallon?
 
I have a chance to pick up a used Eheim Pro3 Canister Filter System, model #2075 for a good price. Would that be too much flow (using a 36" spraybar set-up) for a planted 55 gallon tank w/angelfish?

Thanks, I want it, but worried it's just too much filter!

Boredomb 03-08-2012 04:44 PM

I would fear it would be too much current being it is rated up to a 160 gallon tank. I not sure that a 36" spraybar would defuse the current enough and if it does how much stress would that cause the motor?

lorax84 03-08-2012 04:56 PM

I have an ehiem 2217 on my 55 gallon. It has the 12 inch spraybar, not the 36. I found that the push from it was a lot of current so to solve the problem I drilled extra holes in the spraybar. If you buy the filter and find the current is too strong you could just drill some extra holes.

Byron 03-08-2012 07:16 PM

Quote:

Originally Posted by lorax84 (Post 1007400)
I have an ehiem 2217 on my 55 gallon. It has the 12 inch spraybar, not the 36. I found that the push from it was a lot of current so to solve the problem I drilled extra holes in the spraybar. If you buy the filter and find the current is too strong you could just drill some extra holes.

I've done the same, but the filter is still pushing the same volume of water through the tank, and that is the issue. Aiming the single line of holes against the glass can reduce the force, or drilling more holes; but the water volume remains. And at the opposite end the filter intake is pulling the same volume of water out.

Some of the newer models have volume controls now, something my Eheim from 1996 do not.

DKRST 03-08-2012 07:49 PM

Yea, I'm worried about the "through-flow". That pump has more than 6x the "advertised" flow of my 2215 canister! Even with two intakes, it's still a lot of movement in the tank. I'm not certain I can restrict the outflow enough to please the fishes... Diffusing the outflow is not an issue, an acrylic tube, my drill press, and voila, a tank-long spray-bar. Unfortunately, as Byron said, doesn't really change the total volume of water through the filter of 330 gallons/hour (that's 6.5 tank turnovers per hour). My current Eheim 2215 is rated at 164/hour (3x turnover, but I think that's an over-estimate of flow).

Byron 03-08-2012 07:59 PM

Quote:

Originally Posted by DKRST (Post 1007591)
Yea, I'm worried about the "through-flow". That pump has more than 6x the "advertised" flow of my 2215 canister! Even with two intakes, it's still a lot of movement in the tank. I'm not certain I can restrict the outflow enough to please the fishes... Diffusing the outflow is not an issue, an acrylic tube, my drill press, and voila, a tank-long spray-bar. Unfortunately, as Byron said, doesn't really change the total volume of water through the filter of 330 gallons/hour (that's 6.5 tank turnovers per hour). My current Eheim 2215 is rated at 164/hour (3x turnover, but I think that's an over-estimate of flow).

For the named fish, I would never exceed the recommended canister for the tank size. I have Eheims (2) and a Rena (1) on my larger tanks, each is rated for that sized tank. With spray bar, more holes, aiming at the glass...I can minimize the force of the current.

DKRST 03-09-2012 08:23 AM

Turn out this discussion's a moot point, the filter's too large to fit under my tank stand anyway, with a CO2 tank and a 20L tank already there...

Thanks for the feedback in any case, it's much appreciated!


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