The Tetra Whisper 1-4 Internal Filter for aquariums is the ultimate in quiet, convenient 3-stage filtration. This submersible filter mounts on the inside of the aquarium, rather than hanging from the outside, making it possible to place the tank flush against a wall and easily hide with tank decor. The air pump (included) provides bubbles that move water through the filter, efficiently filtering and oxygenating your aquarium. The water flows through Ultra-Activated carbon, absorbing odors and discoloration, as well as through the dual-sided mesh of the Bio-Bag Filter, trapping debris and fish waste.UNIVERSAL DESIGN: Tetra Whisper 1-4 Internal Filter is an all-in-one air pump and water filter system. INTERNAL FILTER: Mounts on the inside of your aquarium. CATCHES DEBRIS: Dense, dual-sided mesh filters debris and fish waste. AERATES WATER: Air-driven design filters while oxygenating water. CONVENIENT DESIGN: Uses easy to change Bio-Bag cartridges; filter mounts inside aquarium, making it possible to place tank flush against the wall. USE IN: Aquariums 1-4 gallons in size.
