Power head placement for sps dominated tank

[newnoobreefer]

Looking to go for a sps/acro dominated tank but im having mixed feelings on the flow of the tank. Where should i put power heads or gyers in my tank,i currently have 2 ai nero 3 in the tank and the return pump but i feel that its not enough flow for sps/acro coral. Going to buy more power heads should i get 2 more neros or 2 gyres and place them on the back wall or scrap both those ideas and do something completely different. All opinions are welcomed (budget friendly pumps) thank u

 

[Gumbies R Us]

@Reefer Matt