Juwel bioPlus Fine Filter Sponge Size:Large Do not use if the

Do not use if the water temperature is above 30 °C (86 °F)

Contains spirulina

Soft corals

Designed for straightforward setup and operation

Juwel bioPlus Fine Filter Sponge Size:Large Do not use if theJuwel bioPlus Fine Filter Sponge Juwel bioPlus Fine Filter Sponge is a fine pore aquarium filter medium designed for biological filtration in Juwel filter systems. It is suited to freshwater and saltwater aquarium keepers who want to support slow, even water flow through the biological filtration area without introducing chemical residue. Key Benefits Provides biological filtration characteristics for aquarium filtration. Fine pore structure creates a