Had a disaster recently..
I saw a fish I wanted at a petshop and grabbed it then ended up being really busy and in a hurry just chucked it into an established tank with other breeders (fish was big and looked healthy enough). I am sure everyone can figure out what happened next. I noticed that the fish had a small sore on its side (assumed it was just from smashing into a rock or something like that so thought nothing of it). Then noticed the fish in the tank had white spot got annoyed I didn't quarantine so treated for that, next day all the fishes scales are peeling off slime everywhere and they are dying! I freaked out got in touch with Jen and starting trying to treat for what we might be able to guess it was, it wiped that 5fter out of fish and I had tried my best to ensure no movement of water etc had happened. A few days later I noticed a sick fish in my big 540L display tank with 90% of my breeders (close to 100 fish) that I wasn't breed from in it, 2 days later (with tons of attempts to treat) they are all dead Pretty gutted about the whole thing really, and the worst part is it is my fault. However the fish that caused the whole thing is still alive, so it must either be a carrier and not show any symptoms, so I am not even sure that quarantine would have helped because I would have declared it clean by now and introduced it.. So I guess it is just one of those things that happens. At least it hasn't spread to any other tanks so I can sterilise everything and start again
I am pretty gutted and it was almost enough to get me to throw it in for the last week I have been considering it
If anyone has brought any of my fish over the years and has any pure babies from them let me know I am looking to get a few of the many strains I have lost.