3 days ago, I bought new neons at a Petco in Mass. I should have known better as their tanks looked terrible, the fish I bought looked fine. I placed them in a well established tank with other neons. Today, 3 days later, I have no live fish in that tank!!! I've lost 12 fish in 3 days!
I just hope the epidemic does not spread to my other tank.
Petco has a policy that covers the new fish, but there is nothing you can do about your old ones.
:(