I have a 50g 36" long Hagen tank
AquaClear 500
2x AquaClear 802s
Ebo-Jaeger 150w heater
35lbs Live fiji & Vanuatu rock
40lbs CaribSea/Crushed Coral
2x55w Power Compacts & 1x MarineGlo Actinic
Skilter 250.
I have had the tank running for 3 months now without a problem.