Bubbles on fins?

[Sunpoe]

Nitrates are 0ppm are you sure that is right?

 

[REDKID!!!]

ohh nitrates sry there 10-20ppm its hard to tell between the color

 

[guppy]

I think I would go ahead and treat for finrot. It is not the waterif those #s are right.

 

[toehead11183]

Finrot

 

[REDKID!!!]

Thx i was away from the tank at my dads for 3days and i ddint get to treat it yet and whn i got back they were gone

 

[guppy]

Cool, spontaneous healing.

 

[loach43]

I was gonna say that your fish might just have some calcium deposits since your water is in the alkaline realm. Looks sort of like that condition but I'm thinking maybe not since the spots typically start forming on the pectoral fins first instead of the edges of the dorsal & caudal. Are you using well water?