Superfish フィルターウール

I've been struggling with cloudy water for weeks, and cutting a piece of this wool for my filter’s final stage cleared it up in under 24 hours. The fibers are dense enough to trap fine particles without clogging too fast.

I was pleasantly surprised by how versatile this filter wool is—I’ve used it as both a pre-filter and a polishing pad. It traps finer particles than my old foam block, and the water stays much clearer between cleanings.

My tank water has never looked this clear — the wool catches all the fine debris my sponge filter misses. I use it as a final polish layer in my canister and it stays fluffy enough to rinse out a few times before replacing.