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Eliminates osmotic shock
invertebrates and macroalgae
Not for use on acrylic aquariums
signaling that the filter needs to be cleaned
Accuracy:Range
Eheim True Temp Aquarium Heater 250 Watts Freshwater Fish Food Eliminates osmotic shockEheim Jager True Temp series heaters. Made of 2mm thick shock resistant Pyrex glass construction, they are stronger and twice as thick as most other heaters. The Jager heater features a precision bistable thermostat with + 0. 5 accuracy. Perfect for freshwater or saltwater aquariums. Fully submersible aquarium heater with dry run protection. Adjustable from 64F to 94F with an easy to adjust thermostat. Free from radio and TV interference. 6 foot