controller recommendation

Hi everyone. I am new to salt water aquariums, but have had fresh water for many years. I live in an apartment in the city and have minimal real estate for a large set up, so I purchased the Waterbox 15 AIO Peninsula tank and plan to have a pair of clowns, maybe a Randall's pistol shrimp/goby...

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...