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aquarium safe sponge

  1. Best Sponges for DIY Sponge Filter?

    DIY Aquarium
    Hey! I just mad a little sponge filter with airline tubing and an airstone running directly into a sponge. I've had it running for two day in my 2.25 gal and it doesn't seem to be attracting ANYTHING. =/ I'm getting a little frustrated. My current sponge is an aquaclear foam filter insert for...
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