Juwel Aquarium Jumbo Nitrate Sponge is an ideal way to simply control nitrate levels within the aquarium which helps decrease algae growth.

Simply swap a blue foam for the Juwel Aquarium Jumbo Nitrate Sponge in your Juwel filter.

Juwel Aquarium Jumbo Nitrate Sponge measurements: 14.8 x 14.8 x 5 cm