Either two canister filters or one canister with one HOB
will provide the redundancy and water flow you need for a tank that size. My own preference would be two Filstar xP2 canister filters (one at each end of the tank) or one xP2 and one AquaClear 110 HOB
. If your fish are messy eaters (like Oscars) then you could look at going with xP3 filters instead of the xP2. Of course a lot depends on how heavily stocked with fish and plants your tank is.
If you do have 384W of lighting you will definitely need to go with a pressurized CO2
injection system to get the most out of your plants. If you don't have pressurized CO2
you risk algae blooms that would overwhelm your plants. You should also look at a specialized substrate for planted aquariums. I recommend either Eco-Complete or Flourite.