what supplements would you use

[reefnut]

well i currently have a 48 that is 6 months old.My fish a healthy from what i can tell and i want to go to a bigger fowlr tank so i can have some real fish.I also want a smaller beginers reef tank that will be my new 33.I already have water substrate and a few pounds lr in it.I will soon ad a few pounds of sand from the 48 to the 33.Right now im testing for am.nitrite,nitrate,calcium and ph and sg of course.All these levels are good.those are test from my beginers test kit.What should be the next test kits i go for?Im trying to learn my way into this,take it one step at a time.

P.S. This site is great thanks for the advice.