I use Poret as intake pre-filters, canister and sump media, and mattenfilters. It’s easily cut with a razor or, even better, a bandsaw. These are 2″ thick blocks of 20 ppi and 30 ppi Poret acquired from Swiss Tropicals. The factory issue Eheim foam is used as a template.
Published by Ryan Boren
#ActuallyAutistic parent and retired tech worker. Equity literate education, respectfully connected parenting, passion-based learning, indie ed-tech, neurodiversity, social model of disability, design for real life, inclusion, open web, open source. he/they View all posts by Ryan Boren