I got 3 leopard danio to add to my school and in qt one has developed a lump/white pimple on his lower lip. He acts fine and the other two fish are fine but his lip still has the bump, any idea what it is?
I treated with marycyn 2 but it did nothing.
Doing research has shown that it is not that uncommon, but I still don't know what it is :icon_cry:
Any help would be great.
Qt tank is 5 gallons, been set up over 6 months, just the 3 new fish in it for qt. Nitrates around 20ppm.