I noticed this morning that two of my female guppys have tiny black spots and specks around their mouth.
I haven't had any recent additions to the tank , other than fry being born.
What could it be and how do I treat it. I did use the search function but it was taking so long for the page to refresh that i gave up. (i need to get to work - so I'll post here and check back later)
Oh, I also did a quick google on "black spot" but it says it's rare in an aquarium and needs a snail host?
I do have a snail (ramshorn and trumpet) but I don't think the guppy has eaten bits of them!
Water: no ammonia, no nitrtites, nitrates 20-30 pH 7.3
if I need a treatment, bear in mind I have scaless fish (Kuhli) in the tank.
thanks