New Sponge Material for Powerhead Filters - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 07-21-2015, 09:28 AM Thread Starter
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New Sponge Material for Powerhead Filters

I have 4 powerheads in my 50 gallon tank that have sponges affixed to their intakes, and that filters the water mechanically and biologically.



I've used sponges I found in the garage- from the 80's...



Perfectly preserved. I tried using sponges from Home Depot, but the modern sponges deteriorate after a week or so in the water. And I've heard that sponges you buy at the store contain chemicals that could harm aquarium life. But these sponges that use old school formulas don't degrade unless it's been in the sun. So they've been great for many months, and I rinse them through about once a week.

But, after adding a CO2 generator, the water chemistry changed. It got a little cloudier, string algae started to proliferate, and I noticed that the sponge filters got clogged must faster- I have to wash and rinse them every other day now. I suspect that the sugar or the yeast that comes up through the CO2 line is particularly good at clogging the tiny holes that make up the sponge.

So, I need to get a new sponge material. Given my design with the powerheads, does anyone have a suggestion about the kind of aquarium sponges I can use. But it's imperative that the shrimp that live in the tank are not harmed- the modified filter design should not endanger the shrimp.

Thanks, peoples!


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post #2 of 8 (permalink) Old 07-21-2015, 10:01 AM
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Filter max pre filter's work well for me.
About eight or nine bucks from doctorsFosterSmith.com
They come with two or three adapter's to help fit most filter intakes and or power heads.
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post #3 of 8 (permalink) Old 07-21-2015, 12:58 PM
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Take a look at swisstropicals they have all kinds of filter sponge

Bump: http://www.swisstropicals.com/
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post #4 of 8 (permalink) Old 07-21-2015, 01:06 PM
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I use the sponges sold for Aquaclear filters. They have more open cells than a cleaning sponge, but they sure catch the debris. To attach them to a filter or ph intake I cut an X through the narrow end. Don't remove any material. Stop cutting before the hole goes all the way out the other end. The internal tube, with LOTS of holes is optional.
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post #5 of 8 (permalink) Old 07-21-2015, 01:53 PM
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Are you not worried about all the soap and chemicals that most likely contaminated a garage sponge?
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post #6 of 8 (permalink) Old 07-22-2015, 04:55 AM
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I put a water bottle on the end of mine and fill the bottle with pillow batting. I cut the bottom off but you can just put holes in it if your want. If you just poke holes in it you can add other media, like ceramic rings for bio.

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post #7 of 8 (permalink) Old 07-22-2015, 05:26 AM
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Be careful if you use the quilt batting, it can get sucked into the works of the pump. At least a sponge is stiff enough not to have this problem.
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post #8 of 8 (permalink) Old 07-22-2015, 06:16 PM
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I only had that problem when I used it as a added filtration to a 75g tank that had a 10" red eared slider turtle in it. It took more than a week for the batting to get so clogged that it would start to suck back into the power head. I was not worried about it, it was stupid easy and cheap to just pull the old stuff out and replace it with new batting.

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co2, filter, powerhead, sponge

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