You won't need to dose until they start growing, if you maintain your water parameters. I'd recommend Oceanic for sps or lps. Sps take the most light, absolutely immaculate water quality, very high light. Lps are extremely forgiving, which is what I know pretty well, but Im pretty sure Oceanic would do fine for sps, If you don't want to spring for a dosing system, right off, invest in Salifert tests for alk, cal, mg, definitely a good skimmer for sps, and an autotopoff unit.