i have kept several over the years. have no idea how one fit through an eggcrate top, but it did.
what are you feeding yours? i have been able to get several to eat brine shrimp, but getting them to eat anything else was difficult. brine shrimp is not nutritios enough for them.
another big problem, is that i am pretty sure most are caught using cyanide.

the harder the fish is to catch the more likely it was caught with cyanide.
i wish you all of the luck in the world with that fish. i also think that they are beautiful, hence the reason why i have tried so many over the years. i just want you to know all of the problems associated with them. not a fish for the inexperienced.
G~