I'm bumping this question to ask if this would be a good product for heating my 18x18x24 Zoo Med Terrarium. I want to hold a temp of around 74 degrees for dart frogs. There is a water feature in the middle of the tank which is surrounded on three sides by substrate. My follow up question is would this be adequate to heat help heat the enclose?

Hydor HYDROKABLE Cable Heater 25W 14-Feet 10/18-Gallon CE