Enclosure safe?

I made this enclosure for my ghost mantis F she’s a L4 I think but she went on a hunger strike a month or so ago so I think she may be smaller than Usual. I moved her into a 7x7x12 exo tera is it too big for her prior to this she was in a deli cup about 1/8 of her new enclosure btw it’s a fully bioactive tank