apex vs hydros

I am a new reefer and have the following equipment Tank - 120 Gallon SCA aquarium with shadow overflow Sump - 40 Gallon breeder with Fiji sump kit Skimmer - Aquamaxx Cones CO-1 Return pump - Vectra M1 Powrheads - MP40 x 2 Heaters - Eheim Jagger (250w) ATO - Tunze Osmolator Lighting - Kessil AP...