Heater Sizing Chart
The guide is based on a maximum of 11 degrees difference between your room temperature and the desired aquarium temperature.
If you room is cooler than the 11 degrees we suggests going the a larger heater.
What size heater do I need for my tank?
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1 Comments
This chart has no way to tie wattage to model, and your product page doesn't list the model's wattage. How on earth do you expect this to be useful?