I just noticed my platy has some shiny white spots on her. What could this be? Doesn't look like ich? Should I treat for bacterial or fungus?
Tank is 36 gallons
Ph is 7.0
Ammonia is 0
Nitrites is 0
Nitrates is 20
Temp is 75
Have 4 platys
3 zebra danios
2 black skirts. ( yes I know they are schooling fish but every time I add more the two I have get aggressive, they are happy just the 2 of them and not aggressive)
1 sucker fish. Dont know what kind. Had him for 5 + yrs. he's about 4 inches max
10 guppies including a few fry
4 neon Tetra.
My tank is a bit over stocked for my liking. The guppies will be going to a friends soon.
Regular water changes, weekly about 25%.