Help my splashing tetra have a little bump on his mouth

[Barry Tetra]

My splashing tetra grow cyst on his mouth and it getting larger and larger pls help.

 

[Colin_T]

picture?
make sure it's in focus and clearly shows the problem

 

[Barry Tetra]

Its that fish that you answered my thread.

 

[Colin_T]

take some more pictures and find a few that are in focus, then post them.

 

[Barry Tetra]

https://www.fishforums.net/threads/neon-tetra-bumps.455631/#post-3850200 It looklikes the one @Deanasue had.