I wanted to post this since there aren't a whole lot of threads on these fish hiding while the question of a missing one comes up frequently.
I noticed mine was missing after accidently dropping a heavy glass dish I thaw frozen food in, into the tank. He did not show back up until this afternoon, looks fine, clearly wasn't going hungry. I think I scared it, and it went to love in the engineer goby tunnels for the entire time.
Typically it goes into a little burrow my engineer goby dug out for it at night, but it wasn't there at any point while missing.
I thank my incredibly hospitable engineer goby for making my firefish feel safe while recovering from the scare.
If you came across this searching, don't give up hope just keep your maintenance going and it might show back up.
I noticed mine was missing after accidently dropping a heavy glass dish I thaw frozen food in, into the tank. He did not show back up until this afternoon, looks fine, clearly wasn't going hungry. I think I scared it, and it went to love in the engineer goby tunnels for the entire time.
Typically it goes into a little burrow my engineer goby dug out for it at night, but it wasn't there at any point while missing.
I thank my incredibly hospitable engineer goby for making my firefish feel safe while recovering from the scare.
If you came across this searching, don't give up hope just keep your maintenance going and it might show back up.