New 46 Gallon bow reef

[Aquaria]

ok well here goes like title says got a tank been cycling 2 weeks picking up lights (not sure let u know friday) the powerhead looks small do i need 2? got flow in the back from the canister filter makes the water rotate on its own.(ill take pics this weekend) got live sand from seller but i dont know if i like it its fine sand and kicks up REALLY easy advice welcome (again pics fri).canister filter eheim 2217 was reading it was rated for 75 gallons if its the right one, stealth200w sub,remora skimmer? HOB (dont think its the pro but i pick up friday), no live rock it will be last for of course financial complications 480 bucks is alot when i just spent 500 on equipment looking to buy used (if any offers) AND aiming for Fish / coral Dec25-jan25

ANY advice is appreciated and pics for ideas would be cool thinking an island somewhere in the tank for a coral species mabey a bridge with cave system

P.S whats a good stocking rule 1/2 inch to a gallon or the 1 fish to 10 gallon iv heard both