So for a month or so now the heater on the 55 gal Angel tank is boiling the water so I keep it unplug til the temp is too cold I even put it on 69 degrees which is the minimum and it heats the water to 84 or high 90's. The heater is a 200w Marineland Stealth I have been sick and dealing with other things that I put it for later till a few days ago I email Marineland told them about the issue and mentioned that the heater is not even a year old. Guess what today I got an email from them that say to ship the heater and they will send me a replacement for free no questions asked. That is good service. So will be sending it to them tomorrow. How awesome is that.