Made to help tidy up those sumps and maximise flow and contact time with your media, these double biomedia brick holders, securely hold a variety of bio media blocks (100x100x25mm). With raised feet they allow flow under and around your media for optimal conditions for your nitrifying bacteria.
Made from aquarium safe PETG filament.
*Note that although a large amount of products are kept in stock - potential lead times of 4 weeks may occur in peak time as most products are printed on demand.
