I have been using coconut shells for years as natural caves in my community tank. Since these are not naturally found in the Thames valley they were originally bought. Its essentially half a coconut shell with a doorway cut into it so it looks like a little hut. It also has a hole in the "roof" of the hut. Three of these are visible in my signature.
The other night as I checked on the tank before going to bed I noticed movement. This was really lucky as it was after lights out. One of my silly (not so) little pepper cories had gone in through the door and decided to exit via the chimney. It was well and truly stuck. There was no way it could have got out forward as its dorsal fin could not make the gap and it could not move backward. I did manage to free it with a bit of pushing and shoving. It swam off with no visible signs of injury.
I have now removed the shells from the tank until I am able to plug them
The other night as I checked on the tank before going to bed I noticed movement. This was really lucky as it was after lights out. One of my silly (not so) little pepper cories had gone in through the door and decided to exit via the chimney. It was well and truly stuck. There was no way it could have got out forward as its dorsal fin could not make the gap and it could not move backward. I did manage to free it with a bit of pushing and shoving. It swam off with no visible signs of injury.
I have now removed the shells from the tank until I am able to plug them