Aqua One - Hfx 200 Hang On Filter A sensor changes color reversibly

A sensor changes color reversibly to alert you shifts to in pH levels between 5

It's designed for pets up to 5kg

Perfect for cats or dogs

stuff that ain't theirs

and uneaten food

Aqua One - Hfx 200 Hang On Filter A sensor changes color reversiblyAqua One HFX Hang on Filters provide biological, mechanical and chemical filtration to assist in eliminating waste products from aquarium water. The slimline design allows the filter to be placed on the back of the aquarium with minimal space required. Features & Benefits: The included surface skimmer attracts debris hovering below the surface For deeper tanks, use the provided deep tank extension pipe for a more effective intake Adjustable flow rate