Ista Round Bio-Sponge Aquarium Filter (Large) Airline Tubing & Accessories and sealed reactor chamber help

and sealed reactor chamber help automate kalkwasser mixing while reducing the need for frequent manual stirring

Its jaws may be up to half the length of its body

10 hangers and multiple spacers support the longer cover layout

Rounded blade corners help protect silicone seams during cleaning

Intricate dark squiggles and spots cover its belly and face

Ista Round Bio-Sponge Aquarium Filter (Large) Airline Tubing & Accessories and sealed reactor chamber helpIsta Round Bio Sponge Aquarium Filter (Large) Broad Biological Filtration with the Ista I 146 The Ista Round Bio Sponge Aquarium Filter (Large) combines a broad sponge surface with a low profile weighted base for dependable mechanical and biological filtration. Its air driven operation draws aquarium water through the porous foam while rising bubbles improve circulation and help promote oxygen exchange. The larger round sponge provides increased