2 times now my clown loach as wiggled its way in to the smallest gap in my ornaments and got stuck had to brake both of them to get him out wasnt cheep ornaments!!!
mine did the same when i had them, but i had spiky plants and they loved behind my internal filter was annoying also, i would recommend not getting them or get sponge and back it around places so they can't get in there
Iv got an airplane in mine tank and I mine wiggled its way all the way to the end on the inside of it, don't have a clue how to get it out with out killing it but managed to snap the end of a brake peices of till it slipped out