the tank has been running for a week with another 50 odd fish, rummy nose, cardinal, platties and a lot of guppies too
the tail just start disappearing from the top and only a few hairline like fin left at the end..
it only happens to the prettiest guppies - the albino and those with super fancy tails..
all of other guppies are fine..
is it pH issue? i bought them all from a single tank from Bird Barn and loaded them all into a single tank...
I isolated two of them into a small tank and both died this morning :(