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Old 07-19-2011, 10:05 PM   #1
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sponge filter

Has anybody put together their own sponge filter? I have a 2.5 gallon tank with an air pump and lift tube. From my research, it seems that all I really need to do it cut a hole in the middle of a foam circle and put the lift tube in the middle of the foam. Is that right or am I over-simplifying?
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Old 07-22-2011, 08:53 PM   #2
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Sounds right to me. My filters have slate bases so they sit on the bottom and don't move.
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Old 07-22-2011, 09:03 PM   #3
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You need to have a way for the water to enter the tube, through the sponge. So the bottom of the tube is closed off and holes are added near the bottom to a little less than the thickness of the sponge. the idea is to try and draw the water evenly through the sponge.
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Old 07-22-2011, 09:30 PM   #4
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Just as a side note the sponge filters AnglesPlus sales have open bottom lift tubes.
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Old 07-22-2011, 11:51 PM   #5
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I can certainly put holes in there. I can also elevate the bottom of the the tube. Thanks for the advice. I got the tank free and I am trying to fix things myself rather than spending more money. Would a chunk of clean foam from a craft store work or do I need a special sponge?
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Old 07-23-2011, 12:04 AM   #6
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Yeah the AP filters recommend you keep the tube about 1-2" from the bottom of the filter for the suction to pull the water in.
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Old 07-25-2011, 02:09 AM   #7
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sponge filter r easy to make, PVC and some sponge, rock to hold down the sponge.
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Old 07-25-2011, 02:12 AM   #8
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So how good are these filters? Are they worth it? Better than a hob for shrimp, I've heard, but never used one of these
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Old 07-25-2011, 08:36 AM   #9
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Quote:
Originally Posted by hippy guy View Post
So how good are these filters? Are they worth it? Better than a hob for shrimp, I've heard, but never used one of these
I have a friend with several tanks of shrimp and fish and she only runs sponge filters. They actually work great!
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Old 07-25-2011, 10:24 AM   #10
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Most of my tanks are filtered with ATI Hydrosponge filters. They are economical and work great. There are lots of ways to make a sponge filter, with varying results depending on how the water passes through the sponge.
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