I tried a sump on the planted tank for a while but if you're running injected CO2 I would not suggest it, I blew through a full 5lbs bottle in just over a week. For a low light tank it would be a good idea though.
Just my $.02 :-)
70g Reef Tank :|: 56g Column Planted DP Tank :|: 40g Planted Community Tank :|: 8g Planted Nano
Fluval Pimp #41