OneReef
Reef Guru
I had never read this before, so I thought I would post it. May be helpful.
Put the heater in place. Don't plug the heater in yet, it is important to let the heater sit in the water in the tank for at least ½ an hour. That way the glass on the heater can acclimatize to the temperature of the water. This prevents thermal cracking.
Put the heater in place. Don't plug the heater in yet, it is important to let the heater sit in the water in the tank for at least ½ an hour. That way the glass on the heater can acclimatize to the temperature of the water. This prevents thermal cracking.