I bought a tank of craigslist and it came with a 300w guardian heater, like this one.
The Guardian UL Listed Aquarium Heater - Aquarium Supplies at Aquariums Direct
The knob on top just seems to spin in either direction, is this normal? How do I know when it's set correctly? Also, is 300w to much for a 37 tall?
Thanks ahead of time!
The Guardian UL Listed Aquarium Heater - Aquarium Supplies at Aquariums Direct
The knob on top just seems to spin in either direction, is this normal? How do I know when it's set correctly? Also, is 300w to much for a 37 tall?
Thanks ahead of time!