Ista Round Bio-Sponge Aquarium Filter (Large) Airline Tubing & Accessories Intricate dark squiggles and spots

Intricate dark squiggles and spots cover its belly and face

Rounded blade corners help protect silicone seams during cleaning

Product type: concentrated marine food additive

Primary use: Fish stress reduction and injury support

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

Ista Round Bio-Sponge Aquarium Filter (Large) Airline Tubing & Accessories Intricate dark squiggles and spotsIsta 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