I saw them use these sponges and also use pump filters

if this sponge is to filter wouldn't it be more work when it comes to cleaning and maintenance? And also is it even necessary to have this sponge.

by Latter_Ingenuity8068

2 Comments

  1. Heavy_Ingenuity1371

    Just to keep the substrate separate from the water table I’d assume, that’s what I use it for. You don’t want the substrate to be saturated in water and also to keep grit and stuff out of the pump.

  2. iamahill

    Many use sponges instead of substrate these days.

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