Golden weather loach with multiple bumps

[Buckley]

I’ve had my dojo for nearly a year without any issues. Yesterday, I noticed a bump under her dorsal fin then researched through forums and didn’t find an answer. Today, the bump has tripled in size(at least) and has a few other bumps elsewhere. I’m not sure if I can save her but any information would be gladly appreciated!

 

[Barry Tetra]

Whats your water parameters and how many fish are in there?