Hi,
I bought a new aquarium 10 days ago (60 lt)
5 days ago, I bought 2 new golden mollies (female, male)
and Yesterday I added from my old aquarium 2 gappies (2 months old)
I transfered also 2 apple snails and 2 dwarf frogs.
Suddely,Today the female mollys left fin turned white and is not...