Ista Round Bio-Sponge Aquarium Filter (Small) Calcium & Alkalinity 5 inches and needs an

5 inches and needs an aquarium of at least 180 gallons

Install the skimmer in a stable sump chamber within the recommended water-depth range

Control methods: Direct-drive pump control

Useful for aquarium top-off and RO/DI water storage applications

Ista Round Bio-Sponge Aquarium Filter (Small) Calcium & Alkalinity 5 inches and needs anIsta Round Bio Sponge Aquarium Filter (Small) Compact Biological Filtration with the Ista I 145 The Ista Round Bio Sponge Aquarium Filter (Small) provides gentle mechanical and biological filtration for compact aquariums, breeding systems, shrimp tanks and other applications where a powerful intake current may be undesirable. When connected to an aquarium air pump, rising bubbles draw water through the porous sponge while increasing water movement and