Hi, I had a customer come into work yesterday with a problem in her pond. She has been experiencing a large fish die off. Her fish start to show symptoms of being sick, and are usually dead the next day. This started with her smaller fish. She also mentioned that it has only been happening with her koi and shubunkin, and hasn't affected her comets. She had mentioned that she noticed a fish start to show symptoms that morning, and within an hour of her leaving the store she called saying that the fish had died. I asked her to bring the fish to me, and when she did, the fish looked normal except for what looked like two entry points on the middle of the fish towards the dorsal fin. I went to the customer's house this morning to look at the pond, and everything seemed to be normal except for the fact that most of the fish poop was white and her plants have stopped growing and began to turn yellow. The fish all looked normal on the outside. I sent her home last night with a jug of pond salt, and had her begin feeding frozen peas and garlic soaked food. I got back to the store just now and tested the water, nitrates, ammonia, and nitrites were low. I just ordered enough prazipro to treat her pond once, and am going to continue with the feeding routine. Does anyone on here have any other idea of what it may be and how to stop it ASAP? It definitely seems to be an internal parasite. Should the prazipro and feeding routine take care of it? She's got some expensive fish and we're hoping to eradicate the problem very quickly. Thanks for any replies
