Colourful zoas are more stunning if you placed them with equally Colourful corals.
Clams among the zoas( you have to find them )
Zoas with blastos.
Zoas with lace corals
Zoas with chalice
Your choice to mix
Cheers
Yt
personally i'll keep sg at 1.024-1.025. and do read up on the effects of running 2 skimmers, i would say your deltec is good enough. nice scape and neat sump anyway!