Aquael Ultramax Pre-Filter Sponge Eheim 1001/2 Parts 500 square feet (700 square

500 square feet (700 square meters) of surface area per liter of medium

and run a small stream of water through the brick

Low-nutrient Systems: To maintain a low concentration of available nutrients in all marine and freshwater aquaria

shell-shaped design

overcrowding or emergencies: First

Aquael Ultramax Pre-Filter Sponge Eheim 1001/2 Parts 500 square feet (700 squareDesigned to fit the Ultramax external range the sponges are available in 3 grades to ensure the optimum water clarification can be achieved. The Pre Filter sponge is a coarse grade sponge to remove medium to large particles and is in place to do so before all other media comes into contact with the aquarium water. At a Glance Designed for the Aquael Ultramax 1000, 1500 and 2000 100% None Toxic Course grade pre filter sponge