should i reduce my flow? - Aquarium Advice

benchmark · 07-10-2008, 05:59 PM

Hello folks,
I have recently upgraded from my old in-tank Fluval filter to an external Eheim 2226 filter (700l/h) for my 200 liter tank.

Inside the Eheim i have the recommonded small substrate- pro balls with micro pores for bacteria to colonise..

I was recently wondering if my Eheim filter was maybe pumping too fast and the water was maybe passing too fast inside the pump cycle that the anerobic bacteria dont have time to achive optimal function due to the fast flow.

Will i attain better bacteria activity if i reduced the pumps outflow rate to maybe half so that the water pump cycle slows don and the bacteria can act properly onnthe water before it passes through?

thankyou.

cmor1701d · 07-10-2008, 06:30 PM

Don't worry about too muc flow for the bacteria. The aerobic (requires oxygen) bacteria will coat every surface they can. You can not grow anerorbic bacteria (in the absence of oxygen)in a cannister filter.

The bacteria live on the surface of anything they can cling to. The canister is designed to produce the correct amount of flow.

What makes you think that it is too fast?

benchmark · 07-10-2008, 08:05 PM

just my own wierd reasoning that bacteria loves slow flowing water

07-10-2008, 05:59 PM	#1
benchmark Aquarium Advice Newbie Join Date: Jul 2008 Posts: 4	should i reduce my flow? Hello folks, I have recently upgraded from my old in-tank Fluval filter to an external Eheim 2226 filter (700l/h) for my 200 liter tank. Inside the Eheim i have the recommonded small substrate- pro balls with micro pores for bacteria to colonise.. I was recently wondering if my Eheim filter was maybe pumping too fast and the water was maybe passing too fast inside the pump cycle that the anerobic bacteria dont have time to achive optimal function due to the fast flow. Will i attain better bacteria activity if i reduced the pumps outflow rate to maybe half so that the water pump cycle slows don and the bacteria can act properly onnthe water before it passes through? thankyou.

07-10-2008, 06:30 PM	#2
cmor1701d Aquarium Advice Addict Community Mentor Join Date: Feb 2003 Location: Belle Mead, NJ Posts: 3,894 Images: 43	Don't worry about too muc flow for the bacteria. The aerobic (requires oxygen) bacteria will coat every surface they can. You can not grow anerorbic bacteria (in the absence of oxygen)in a cannister filter. The bacteria live on the surface of anything they can cling to. The canister is designed to produce the correct amount of flow. What makes you think that it is too fast? __________________ Click here to Vote for Aquarium Advice on AquaRank . Vote EVERY day! Click Here for a list of commonly used acronyms and abbreviations. ____ Cmor

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

07-10-2008, 08:05 PM	#3
benchmark Aquarium Advice Newbie Join Date: Jul 2008 Posts: 4	just my own wierd reasoning that bacteria loves slow flowing water