Juwel Bioplus Fine Size:L It also has an easily

It also has an easily removable glass lid and a bracket for secure lid closure

The sponge is designed to reduce nitrate levels in the aquarium

Affects hardness only

a powerful antioxidant derived from grapes

it protects the filter from rapid soiling so that you don't have to clean the other filter media more often

Juwel Bioplus Fine Size:L It also has an easilySmall The JUWEL fine filter sponge is primarily used for the biological filtering of your aquarium. It makes an essential component for the JUWEL filter system. Suitable for the PRIMO 60 & 70 tanks. Medium Juwel BioPlus M Fine Sponge for Bioflow M (3. 0). The Juwel Compact Fine Sponge Filter Media is designed to remove small to medium sized particles and within its design allows bacteria to flourish and multiply down to its large surface area. It is