Tetra Ht40 Submersible Heater 150w 30-40 Gal

Regular price $21.99

Tetra's HT line of heaters are easy-to-use and work in aquariums ranging from 2 to 55 gallons. The heaters have electronic thermostats that automatically adjust heat output to keep water at a constant 78 degrees F. All HT heaters have indicator lights to let you know when the heater is on, heating the aquarium.

All Tetra HT heaters have red/green indicator lights to let you know when the heater is heating(red) or on standby(green). The low voltage thermostat maintains water at 78°F without any adjustment required. Be sure purchase the correct heater for your tank size. Buying a heater too small for your tank can cause under heating. It is critical to ensure your tank is equipped with a hood or glass canopy to contain the heat inside the aquarium. All Tetra HT Heaters will shut off if an electrical short is detected for your safety.

Customer Reviews

Based on 1 review
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C
Colton Willett
Does the job, mostly.

It keeps my 30gal about 76.4 degrees F. Definitely give it time in the water unplugged to equalize the temp before plugging it in or transferring it into a bucket of room temp water if you need to use it to heat exchange water. I think i nearly broke mine by pulling it straight out of my tank and putting it into a cool bucket of saltwater, while it was plugged in. It screwed it up for a while and the sand inside can shift around now exposing heating elements, but, it still works... I did what it explicitly says NOT to do in the instructions, so this was my fault.