What is on Anglefish

[Amimyster]

Parameters great. Checked an hour ago with the API master kit. This is only on 1 of anglefish. 29 gal. 3 anglefish, 2 loach, 1 pleco, 5 snails. Fish has 5 total on different fins

 

[GaryE]

The white, egg like things appear to be fin ray cysts from past injuries.