Heaters and controller

[fishstix]

Need some guidance on heater size for a 400 gallon tank and 125 gallon sump setup. Looking for at least 2 with a controller that will plug into my Apex. Suggestions?

 

[exnisstech]

Sorry I don't run an apex but here's a bump

 

[KStatefan]

My opinion is to run a Ranco controller independent of any other controller for heaters.