Are your Fish 'scratching' on rocks and decorations?-discussion thread

[msjinkzd]

The article can be found at the link below, please feel free to share your experiences in this thread.
http://www.aquariacentral.com/forums/showthread.php?t=86451

[TwoTankAmin]

There are more things/diseases that may cause flashing than just ich or gill flukes. None were discussed in the article:
Velvet
Argulus- Fish louse
Lernaea- Anchor worm
Ergasilus

A couple more may cause flashing as well:
Chilodonella
Costia