To keep on top of maintaining a fish tank, whether its tropical, marine or coldwater, its advisable to use aquarium test kits. From a range of manufacturers such as Interpet, Waterlife, API and Tetra, we stock test kits for all tanks and set ups. Factors such as pH, GH (general hardness), nitrite and nitrate levels of aquarium water can have huge impacts on your fish, so testing regularly or whenever fish activity changes is advisable.