Interesting and useful exchange from YT:
Alistair Young Orfe are particularly sensitive to medication malachite in particular will sometimes result in bending spines but long periods of warm temperatures if your going to loose any that’s when it happens,in the uk lake temperatures rarely get above 20 degrees centigrade
Fish Story, a DIY Public Aquarium & Fish Rescue Interesting. I didn't know. I did read they are sensitive to some pollution. Thank you. Have you found out about orfe and Malachite Green from firsthand experience or from others? Do you think I jumped the gun on the euthanazia and the fish could have recovered given more time?
Alistair Young Hello,I was told this by a very old chap back in the 80s who kept koi and orfe together and after treatment either one or two would die or within days or be left with bendy spines I two have experienced this some years ago however did not loose any orfe but for months had bendy spines but eventually recovered with only a minor bend and I still have most of those fish now. I use
malachite made by NT Labs and it has a warning not to use with orfe Rudd tench or sturgeon so I only do 30 minutes bath if treating koi and in spring I’ll salt the entire pond for parasites as a precaution I hope this helps ,keep the videos going
Fish Story, a DIY Public Aquarium & Fish Rescue Very helpful. Thank you greatly! Wish I knew this before. Perhaps I'd not euthanize our last one but waited longer to see if it'd recover.