ok i have a qustion .....im going to put my 250 gal back togeather ...its in peices since the silicone broke and flooded my house ..well the wife says and i qoute " theres no way in hell thats coming back in the house" so its going to go in the garage.. i live on the west coast of florida just north of tampa... it gets hot here but im really not worried about the heat for the fish ,just the cold..i need good heater that i set to a certant tempature and it wont get any colder than what i set it at on cold nights .. i just need some reccomendations on good brands that i can trust not to go haywire and kill everything ... thanks for your help and if you can send a link to where i can read about it and purchase too that would be great....