I have a yellow tang, Scopas Tang, Black Blenny, Two Target Mandrin, Diamond sand sifting goby, pair of Bangii and the clowns will breed right outside their nem. It is a 90g though.
As far as the rotifers they are too small to see in a tank and you will not have enough in the tank for your fry to eat so you will have to remove the fry one of two methods. Stay up late and collect them when they hatch or have the parents lay the eggs on a tile or pot and remove it to the fry hatch tank. I stayed up till 1 or 2 with this set of babies collecting them. And with the rotifers you can grow them out in 5g buckets and just feed it to the fry tank so that you can actually see the rotifers in there. That is a lot of rotifers depending on the size of the tank.
A good book to start off with is Clownfishes if you can find it localy. Amazon is selling it now but it is going for $34 for a used copy then it jumps to $65. The book is out of print but is it still a good book to get ahold of when you are ready to start breeding them. Another good book to read is The Complete Breeder's Guide to Marine Aquarium Fishes .