Last night noticed a mark on the top of my Firefish. I thought it looked like a nip but could be parasitic? (or from the rockwork?)
If it is a nip the possible suspects are Clowns, Watchman Goby, Six-line wrasse (for reference he is a coward!)
Any thoughts or ideas on if I should do anything or just keep monitoring?
It's hard to tell from the pic.
Is it still eating as normal and all behaviour seem normal?
If so it could be a nip from another fish also firefish like to hide its typical behaviour for their species, and it could have hit a sharp bit of rock swimmer out of the way.
If the answer is yes to above I would just monitor for now
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