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Discussion Starter · #1 ·
I placed an order with Han aquatics for some SS mesh filter guards back in October, I’m still waiting for them to ship. In the mean time, I need some foam to use as a prefilter so shrimplets don’t get sucked in. I currently use the fluval (and knock-off fluval) prefilters from eBay, but they are not very coarse and they really restrict flow on my aquaclears.

Does anyone know where I can find some good quality, coarser black filter blocks to use as prefilters? No hole needed, I can cut that. I just want something that won’t reduce flow so much and can be cleaned regularly without falling apart, like the sponges inside the aquaclear.

Thank you
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