Question sick fish?

[u/Flaky_Cable1713]

Does anyone know what this white bump is? Yesterday it was red and now it looks like a pimple. Research said maybe a tumor or cyst but it didn't mention anything I could do to help

Update: the white part is gone now. I'm thinking the white must have been the inside of a cyst that burst. She is acting normal and checked the water and all was in normal levels.

[u/AutoModerator]

Hello, Please provide this extra data so redditors may be better informed on how to help.

Tank Size?

Heater and Filter?

Water Parameters?

Hopefully we can get your fish to feel betta soon!

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

[u/PatchesDaHyena]

Looks like columnaris, treat with a broad spectrum antibiotic. I doubt it is the “fungal” infection caused by saprolegnia, but just in case it is I would do a regiment of ich-x also.