Unless you are very experienced, trying acros in a 5 month tank won't work. You need to wait until your tank is stable and you have abundant coralline growth. For your other corals, your parameters aren't good as others already mentioned. Need nitrates at 10 and Phos at .05 to .1. Rent a par meter to check your light strength. Take your time. Things get much better after the first year for corals.