I am currently in the middle of my fishless cycle and think i need a different heater. I have a tetra submersable auto temperature which I thought sounded like a great idea at the time. Problem is that it keeps the temp around 73.
I read another post saying that Visitherm was good. What size (watts) would I need for a 20g high?
I read another post saying that Visitherm was good. What size (watts) would I need for a 20g high?