...are covered in specific forums, eg Fish Disease (I know, ooky, but everyone should familiarize themselves with the look of these, so you don't buy a sick fish.)
There are forums on Reef Fish, a good place to learn about your prospective fish, and what (or whom) it eats.
There are forums on coral types, from shrooms to softies to stonies, and their various subdivisions.
You don't have to be an expert to go there. And they are more apt to be able to tell you what to do about an upset anemone or a fish that's actiing oddly.
The accumulated experience on these forums is in the centuries, so your chances of getting a right and sane answer are high.
There are forums on Reef Fish, a good place to learn about your prospective fish, and what (or whom) it eats.
There are forums on coral types, from shrooms to softies to stonies, and their various subdivisions.
You don't have to be an expert to go there. And they are more apt to be able to tell you what to do about an upset anemone or a fish that's actiing oddly.
The accumulated experience on these forums is in the centuries, so your chances of getting a right and sane answer are high.