reason asking is , I ordered 7 small Koi , 1 died nearly 48 hours later after receiving, then about 1 week later a 2nd died and now almost 2 and half weeks in I am seeing a 3rd one not doing so well. The weird part is the 2nd and 3rd have almost the same systomps which is not moving much, not eating, staying more towards the top of the pond. I took them out twice , gave them a salt bath and still the same. I dont see any pine coning effect, I checked my water parameters all good. Ive been doing around 15-20% water changes once a week, I dose with prime and I also use bacteria in a bottle.