AndyP Posted December 6, 2021 Share Posted December 6, 2021 I'm looking at the listing for the pr-filter sponge and the listings all sat 20-25 PPI. I'm trying to get something coarser than the sponge inside the Aquaclear 110 I am using. The Internet says the Aquaclear sponge is 20 ppi. The intake sponges seem a lot coarser than the Aquaclear sponges. Link to comment Share on other sites More sharing options...
Beardedbillygoat1975 Posted December 6, 2021 Share Posted December 6, 2021 @AndyPyou can get 10 ppi from Swiss Tropicals. I think they sell mats which is what I bought and cut off the bits I need. You could cut it and bore out a hole and use it as a prefilter sponge, I have it on my filter intakes. 1 Link to comment Share on other sites More sharing options...
AndyP Posted December 6, 2021 Author Share Posted December 6, 2021 I think that 's the way to go. Link to comment Share on other sites More sharing options...
AndyP Posted December 7, 2021 Author Share Posted December 7, 2021 One thing I wish prefilters had was some kind of plastic cage around them so you could grab then and remove them without touching the sponge. I have the Eheim prefilter on my Eheim canister, and I love it. 750 × 482 It doesn't even need to have openings that small. Just a some kind of cage around the sponge. Link to comment Share on other sites More sharing options...
Beardedbillygoat1975 Posted December 7, 2021 Share Posted December 7, 2021 In one of my breeding tubs in my garage I put some lava rocks and sponges into a mason jar and stuffed the intake of my Aquaclear 70 into it. Works awesome. I'd been using some 30 ppi I had lying around but its much too fine. I think 10 - 15ppi is ideal. I am switching everything to 10 ppi. I have seen people use the plastic planters plants come in for small filters as a prefilter cage. Link to comment Share on other sites More sharing options...
BenA Posted December 7, 2021 Share Posted December 7, 2021 One of my filters is 20ppi and the other filter is 30ppi. The 20ppi pre filter used to be clogged very quickly and had to be cleaned about every 2 weeks as the flow became restricted while the 30ppi remained clean. Link to comment Share on other sites More sharing options...
AndyP Posted December 8, 2021 Author Share Posted December 8, 2021 I bought a Marineland prefilter for their new PRO filter line from my LFS. It fit on the Aqualcear 110 lift tube nice and snug, but it's porosoity is way too fine. It's been 24 hours and I can see the sponge is pretty clogged up and my flow is reduced. I'm sure the sponge in the filter is probably spotless right now. Link to comment Share on other sites More sharing options...
Guppysnail Posted December 9, 2021 Share Posted December 9, 2021 I love the coop prefilter sponges. I guess them around 10-15. The Aqua clear sponge is in the 20-30 range. Link to comment Share on other sites More sharing options...
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