Went to work this morning, all was well. Came home 5 hours later and two of my small koi in my pond were dead. Hurried up and tested my pond water, and everything was normal, no spikes in anything. Went in the house, made dinner, waited for the thunderstorms to pass, and by the time I got back outside all of my fish but my 3 goldfish and 3 xlarge koi were dead or close to it. Went from 11 to 6 in 4 hours or so. Caught the survivors and put them in my empty 55 gallon. Aside from them gasping for air they all look healthy- no signs of ich or anything else. Not sure what I'm going to do yet (bc they OBVIOUSLY can't stay where they are right now!), but I did give them some salt and they're starting to pick at the substrate.
Needless to say, water changes on this tank are on my to do list tomorrow, and hopefully the weather is nice so I can drain my pond and hopefully find what killed off my stock. Sigh.
All I know is that I am devastated, and my hubby wants to fill in the pond because he doesn't want to see me cry in any more fish tanks!
