I have a bunch of Occelatus gold; Do not really understand this fish - lots of shells with a larger (then the ones I can't see but hope are still there) fish appearing to guard the entrance to the shells (each shell has a guard fish).
If I weren't preoccupied with way too many other fish breeding (against my wishes until the new fish facility is finished) I would study this odd behavior.
However, if you (or anyone) understands this fish I'd be happy for some guidance - there might be breeding going on which would make some fish available.
Paul.