- May 26, 2016
- Reaction score
My pond is only 4 months old. 5 Shabunkin goldfish, 3 koi & several minnow. Had a koi thrash & then lie so still I could pick him up in my hands. Then a 2nd stopped eating. Took those 2 in the house & treated them. Treated the pond w/ malachite green & formalin. Now, week & a half later found my favorite butterfly koi in skimmer. Haven't seen him for 2 days, but already emaciated & spine bent up. Couldn't move tail fins. I euthanized him. Devastated. What am I doing wrong?