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Keep your aquarium on the cool side with fish chillers from petco.com. Water temperature plays a huge role in keeping your subtropical or coldwater fishy friends happy and healthy. Aquarium chillers are often necessary for maintaining ideal tank temperatures for coldwater fish, both marine and freshwater.
A great variety of aquarium fish can benefit from setups that use aquarium chillers. Many popular freshwater species, like rosy barbs and zebra danios, thrive in water temperatures around 70°F. Goldfish and weather loaches can live comfortably in 55-65°F waters. On the saltwater side, temperate marine aquarium setups usually need a water temperature ranging from 50°F to 70°F. For such instances where your aquarium fish need slightly chillier water, fish tank coolers are an ideal solution.