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Thread: DIY Sponge filter

  1. #1
    dustin's Avatar
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    DIY Sponge filter

    OK do not make fun of my picture



    OK so i was hoping to figure out if i could just make my own sponge filter rather than buy one just because it would be cheaper, and because i can't find the actual filters so i would have to buy them offline

    Materials:
    aquarium filter sponge
    air line
    air pump
    weights to hold sponge down in tank

    if i was to insert airline into a sponge with multiple holes up the line so air would escape from multiple points, would this be the basic way to make a sponge filter? I could be way off. Has anyone ever made one?

    or using a better DIY website
    http://www.aquariumlife.net/projects/diy-filter/19.asp

    just i would be on a smaller scale

    this would be for keeping the betta fry but at the same time providing another food source.

    Im not sure on the exact workings of a sponge filter, but i believe..

    1. water flows through sponge
    2. air flows through sponge
    3. bacteria colonies form, and break down wastes
    3. also provide micro live food supply

    im not sure if i have water flow with this design. since the air line is inside the sponge and air is pushing water would that be sucking in new water too? is it necessary to have a powerhead?

    haha any tips/ideas, please share them
    thanks
    dustin

    ---------- Post added at 03:30 PM ---------- Previous post was at 03:16 PM ----------

    http://livebearers.org/modules/newbb...hp?topic_id=78 another site

    i might have not included the exhaust tube thing, so i would have to add that too

  2. #2
    clippity-clip-clip Clue's Avatar
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    I have done sponge filters like this before. Not too hard and fairly efficient.
    "I, for one, can't wait to grow Nepenthes extincta!"
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  3. #3
    dustin's Avatar
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    i think im going to try to make the one in the 2nd link i posted, ill try to post pics of what i did and final results too

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    SDCPs's Avatar
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    Thumbs up

    Seriously, you're better off buying a sponge filter. The casing lasts for years...all you have to do is replace the sponge every 4 years or so. And they work A LOT better and save you time. Besides, the ones I have are made in the USA.

  5. #5
    Millipede's Avatar
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    your drawing wouldnt work. it needs the tube with the air stone in it to work. the rising bubbles create the suction you need at the bottom by forcing water up the tube as well. your second link looks perfect for this

  6. #6
    dustin's Avatar
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    SDCPS: haha, yeah at the moment, i'm going to look around pricing, i know they last quite a long time. if i buy 2 filters, the pump, and a multiple valve thing i had an estimate of spending $40, since no pet store sells them buy us. i was going to get the dual clover filters. though if you have experience with those other brands let me know. i just heard they suck in some waste products, and that the other models might be too strong for the small bettas. i have seen them extremly cheap on ebay just they aren't the particular model i would like. and if i made my own i could customize the size.

    millipede: yeah i found that out once i found the 2nd website, thanks, yeah i think im going to try to make one using the 2nd link.

    I'll also try to post some pricing, i think when i read another forum about making your own sponge filters, they made their filters homemade for less than $1 each, but ill see what happens

    thanks for your input.

  7. #7
    SDCPs's Avatar
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    Millipede is totally right. You need the lift tube.

    Quote Originally Posted by Millipede View Post
    your drawing wouldnt work. it needs the tube with the air stone in it to work. the rising bubbles create the suction you need at the bottom by forcing water up the tube as well. your second link looks perfect for this

  8. #8
    dustin's Avatar
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    OK, i got it :P, here's the new design, , ill most likely put something in the bottom of the lift tube inside the sponge to weigh it down too. paint wasn't being dumb so this time its not that bad.


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