Best Heator or Controller for 220 gal

[wargeneral]

Anyone know what the best heater or controller is out there now?

My heater from Rena which an unbreakable 200w popped last night and smoked and released a little something into the water.

I am looking for a heater that has a great track record with no issues.


Also should I go with 1 heater or 2 heaters. I was running 3 - 200w heaters but now down to 2 - 200w heaters.

I have good flow in the tank.