Hi everyone, forgive me if this is a stupid question, but how do I know when an egg is "ready to hatch"? Does it show up somewhere in writing? I want to use a Philter on my egg, and it's already at the stage where I can see an eye and the tip of a tail through the cracks, but can't figure out where the button to use a philter would be. Any advice would be appreciated! Thanks!

When an egg is ready to hatch, there will be a symbol in the upper right corner of it's picture in the hatchery, and when you click on it there will be an option to either let it hatch (that will give a random stat bonus) or help it to hatch (which will give it a health bonus).

Thanks so much, that's a very helpful answer!