Dose or food?
Dont dose food, just feed your fish tank once or twice a week a tiny amount of that phyto stuff if you want, thats not dosing, that is feeding.
not really sure if you mean feeding or adding nutrients to the water.
only thing I can tell you is that you need to learn the difference between types of corals.
Then learn what each of those types needs. A reply will simply be too long, fortunate for you this information can be found on the world wide web and its freeeeeee, consider it your first freebie if you will
We are here to help the community not to refer them to the WWW. I have sent you a PM. The whole purpose of a forum with such a great community of people is to be able to teach the knowledge we have to others that are in need. (you got a message)