Diseases of the Mouth
Mouth Won’t Close – Examine the mouth for an acorn or pebble. If you find something in there, push the object out of the mouth by putting a smooth blunt object in through a gill cover and then poke the object out of the mouth. Secondary infections are possible. Look for sores in the mouth cavity if it’s gone on a while. If you suspect a bacterial secondary infection, look at THIS.
Mass Growing on Mouth – Cancers aren’t uncommon on the mouths of fish. Providing a great environment and locating a fish veterinarian to consider surgical ‘debulking’ would be a good idea. Sometimes, what appears to be a “mass” on the mouth is just a big infection. If you suspect a bacterial secondary infection, look at THIS.
IF you decide to try and pare down any lesion that’s interfering with eating, or breathing for the sake of the fish, be careful. And you will need the dissection kit in the Lab Gear document as well as some Oil of Cloves.