Aquarium Temperature Controllers

We are proud to introduce the NEW SmartTemp Thermometer. This unique design combines a thermometer with a magnet. Attach to the inside of the tank to make sure your aquarium water is the right temperature for your fish.High accuracy aquarium...

Marina Minerva Digital Thermometer is an easy-to-read liquid crystal display (LCD) aquarium thermometer that is reliably accurate to plus-or-minus 1° F: no guessing, no color confusion. Mounts vertically and easily sticks to the outside surface of...

The Marina LCD Thermometer is an easy-to-read liquid crystal display aquarium thermometer that is reliably accurate to plus-or-minus 1° F. No more guessing, no color confusion. Mounts vertically and easily sticks to the outside surface of any...

Hagen Marina Meridian Thermometer is an easy-to-read liquid crystal display (LCD) aquarium thermometer that is reliably accurate to plus-or-minus 1° F: no guessing, no color confusion. Mounts vertically and easily sticks to the outside surface of any...

The Marina LCD Digital Aquarium Thermometer features an easy-to-read liquid crystal display (LCD) that is reliably accurate to plus-or-minus 1° F: no guessing, no color confusion. It mounts horizontally and easily sticks to the outside surface of any...

The Marina Aquarium Floating Thermometer accurately monitors water temperatures to protect your fish from unsafe temperatures. An attached suction cup to secures it tightly to your aquarium wall. It features Fahrenheit and Celsius readings and is...

Most tropical fish have specific temperature requirements in order to thrive. The Penn-Plax AquaLIFE Therma-Temp Digital Aquarium Thermometer makes it easy to know exactly what temperature your aquarium is at. This thermometer mounts conveniently on the...

The Marina LCD Digital Aquarium Thermometer is an easy-to-read liquid crystal display (LCD) aquarium thermometer that is reliably accurate to plus-or-minus 1° F: no guessing, no color confusion. Mounts vertically and easily sticks to the outside...

The Marina LCD Aquarium Thermometer features an easy-to-read liquid crystal display (LCD) that is reliably accurate to plus-or-minus 1°F, meaning no guessing and no color confusion. It mounts vertically and easily sticks to the outside surface of any...

Hagen Floating Thermometer. Centigrade and Fahrenheit. For fresh and salt water. Accurate and easy to read. Safety zone indicator for most tropical fish. Protects fish from unsafe temperatures.Floating thermometer for fresh or saltwater useAccurate and...

The Hagen Marina Standing Aquarium Thermometer is an accurate, easy to read temperature indicator for fresh and saltwater fish tanks. Includes a safety zone indicator that applies to most tropical fish and helps protect your fish from unsafe temperatures...

Hagen Marina Black Thermometer Suction Cups are specially designed to secure aquarium thermometers, heaters and airline tubes to tank walls. They provide tight adhesion in or out of the water and attach equally well to glass and acrylic surfaces.Suction...