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  1. #1

    Join Date
    Jun 2011

    Latest gifts & ribbons:

    Post Turning off the filter at night and its consequences

    0 Not allowed!
    Hello everyone.

    I am a biologist and decided to run a FOWLER. (I had FW before).
    I love my absolute silence when I sleep and I think I might turn off the Ehiem canister filter at night.

    I am sure it is not the optimal condition but lets talk about it.

    Most nitrification organism (bacteria and archaea, Nitrosomonas, Nitrobacter) are aerobic, However we still have anammox (anaerobic oxidation of ammonia by ie Planctomycetes).

    I am sure not all of the microbial community will die during 9 hour of lack of circulation in the filter(think how hard it was to get ride of all those algae or cyanobacteria). Yes, it will reduce the viable and active cells but I won't say they "all will die". Moreover this will provide opportunity for Anaerobic anammox to get active.

    When no input of resources (in our case tank water) is added to our "reactor"(filter) cells first go into dormant phase, then spore and then die. Others might get the opportunity to get active(as I said about anammox).
    So I hypothesis that turning off the filter at night should act as a little time freeze on microbial community of our filter?
    I try to search some peer review articles about this. But I would like that you guys share your experiences and your thought

    1-what do you think?

    Now Please comment about technical aspect of this scenario:
    I have 60 gallon tank with lots of live rock and few fishes.
    I set a timer to turn off the Ehiem Canister classic off by 11pm and turn it on by 7am. Does it start to filter again automatically. I never used canister so I don't know about priming.

    2-Now please comment about technical aspect of automatic turning off/on
    Last edited by seavashr; 06-21-2011 at 04:30 PM. Reason: I am not sure if I post this in proper topic!

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