He may be, he may not be. You can't tell by looking at them. "Coral" can be used in two ways. I have seen it used to label a line of Hypo Snows that take on a Coral color. In this case I doubt yours is this type of Coral Snow since they are usually much more "Coral" in color than yours.
I have also seen the term apply to any Snow that is also Homo for Hypo, regardless of how does or doesn't color up. Some Hypo Snows are Pink, some are not. Some Pink Snows are Hypo, some are not. The only way to know for sure is to either 1) Find out that both his parents are homo Hypo or 2) Breed him to anything that is Hypo but not homo for Amel. If he is a Hypo (or "Coral") Snow, he will produce 100% Hypos when crossed with another Hypo. That is of course assuming we are working with Hypo A. :sidestep: