These look super cool! I wonder if they're fine enough mesh to keep new shrimp from being sucked up? In some tanks the prefilter sponge is a little unsightly...
It definitely looks fine enough to keep anything out! Cleaning would be slightly more annoying than a sponge pre-filter it seems because you can’t just squeeze this out. Looks like the spray feature on a sink would do the trick though. I may get one of these to see how I like it.
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