Heater for fish tank instructions

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Place your aquarium heater towards the back of the aquarium horizontally and just a few inches above your substrate. This way the heat will rise and disperse If the tank still needs to be warmed up, wait until the indicator light on the heater is off and then carefully turn the thermostat up until the light just Allow your submersible heater to operate for 24 hours, then check your aquarium temperature. Adjust your thermostat up or down accordingly, and recheck your anko 50W AQUARIUM WATER HEATER. SAFETY INSTRUCTIONS. 1. For use in tropical aquarium up to 35L only. 2. Use heater only when fully submerged in water.A submersible heater can be placed low into the water, and if it has an internal thermostat it usually works best if you put it horizontally. This will help the