I'm looking for suggestions for a good heater. I had a Aqua Medic Biotherm 500 watt that lasted a year.I have a 75 gal. saltwater with a 30 gal sump/fuge.
Yeah, I've got visi-therms in each of my tanks and they seem to do ok. They have a chart on the side of the box to help you figure out what size to get based on how many degrees different you'll have your tank water vs the ambient room temp.