White growth on Convict

[Steve2717]

Hi, I've noticed a white growth appear on the edge of my convicts Gill. Can anyone identify what's wrong with it and how best to treat please? Thanks in advance

 

[Steve2717]

Does anyone know what this is?

 

[jaylach39 156]

It could be many things but my first guess would be excess mucus due to an injury.

Do more frequent water changes to help prevent infection and see how it goes.

 

[Steve2717]

It could be many things but my first guess would be excess mucus due to an injury.

Do more frequent water changes to help prevent infection and see how it goes.

I wondered if it could have been injury but thought it looked more of a tumour . He's paired off with a salvini and guarding the nest so is frequently arguing with the others, I've noticed some the others are missing a scale here or there. I may have to split them up. I do at least a 50% water change every Sunday, will this be enough?