Cobalt Neo therm heater 75 watt

[Keywest99]

I bought a used 15 gallon waterbox with a Cobalt Neo Therm 75 watt heater. When I initially plug it in the leds don't cycle around. It just has one red led lit on 9 94 degrees. The top button doesn't appear to do anything. Any ideas? Or buy a new one?

 

[brandon429]

do a search on the thousands of reef tanks killed from melting cobalt heaters