I’ve been using AI to help with my daughter’s 10g tank. And it’s going great, perfectly cycled and very stable. Looking at getting some neon tetras, but can’t figure out how to maintain the recommended temps. Have the tank sitting on the stove on full blast but Every time I add fresh water it vaporizes instantly, but can’t get above 220f on the hottest setting.

We have a 50w titanium heater, wondering if aqua one make a plutonium heater that might help, and if so what megatonnage I need for a 10g/36L.

Thanks.