So...I have a 40 gal running well for two months in it are 10 pristella, 6 swordtails, an upside down catfish, 2 paradise fish, and a gold nugget pleco.
parameters are all good as of 2 days ago PH @ 7.6 Temp at 78*
Noticed this morning that one of my female swordtails has a small, white bump...