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Results 1 to 9 of 9
  1. #1

    Join Date
    May 2008
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    Default What's the best bio-filter media?


    0 Not allowed!
    I'm curious if you guys have a preference for a particular type of bio-media. Eheim has a few different types- ceramic cylinders, a couple types of porous gravel. Fluval has a very different type of cylindrical porous media. There are those plastic bio-balls- of various sizes. I've heard of some people just using a coarse filter sponge.

    Lets assume this is for a canister style filter, since I know a lot of you prefer those bio-wheels.

    What media has the longest lifespan? Is the most efficient ammonia reducer per volume? (via bacteria of course)

  2. #2

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    I don't know about the best but I really like the ceramic rings. My canister filters are all a layer of sponges to trap debris then ceramc rings for the rest of the filter trays. That seems to work very well.

  3. #3

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    For pure biofiltration, ceramics or other microporous materials are best, but you have to keep them free of debris.

    The usual setup it so stage the filtration. Gradually finer layers (pre-filter, then sponge, then micro filtration) and then after all that, the biofiltration media. Each of the mechanical filtration layers will contribute to the biofiltration, the ceramics are for that extra boost, especially in densely stocked tanks.
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  4. #4

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    0 Not allowed!
    all my canisters have sponges, bioballs, and ceramic rings

  5. #5

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    Ceramic rings are great and easy to get for trapping bacteria... however, I've been reading in several places that sintered glass is even better. I'm ordering some this week... I willl have 50/50 sintered glass and rings (in separate trays) and if I notice an improvement over the rings, I'll be doing sintered glass in all of of the trays.

    However, nothing beats Sponges for bio and mechanical filtration. That's why they are in every type and brand of filter I have seen. Usually the first line of filtration is sponges.
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  6. #6

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    Hey cocoa... someone told me bio-balls are not supposed to be used in canister filters? Is that a false statement?
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  7. #7

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    Default


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    I use Fluvals, so I use their porous ceramic media, Biomax. From what I have seen, read, and heard Eheim's version is about as good, not sure if one is better than the other.

    Bioballs are not as efficient as porous ceramic medias (surface area per volume). They were originally designed for trickle filters so they allows a lot of space between the surfaces, enough to allow air in for the wet/dry function of the trickle filters. When used submerged they simply do not have near the same amount of surface area per volume as porous ceramic medias. Even the ones that are altered for submerged use (denser so there is more surface area per volume than their original version) there is still not the as much surface area as porous ceramic medias.

    I still use the Biomax I had for the first Fluvals I got about ten years ago, so it will last. The only maintenance is to rinse off any visible debris whenever you maintain the filter.
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  8. #8

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    0 Not allowed!
    Quote Originally Posted by RainMan
    Hey cocoa... someone told me bio-balls are not supposed to be used in canister filters? Is that a false statement?
    ive heard that, but i still use them. i prefer mini bioballs

  9. #9

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    Default


    0 Not allowed!
    I am using ehfitrate pro [looks like cocoa puff cereal].i have had it for about 6months now,it seems to be doing its jobe very well.It is in the top basket of my rena xp-2.I have no idea how long the stuff lasts but I would think it would be darn near forever ,it is a sintered glass material and it wont fall apart under normal use.Bio balls are of little use if they are not in a highly oxygenated environment .

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