I am so sorry to hear about your kill. I have a thread ( 301315 ) very much like yours only without the kill....so far. That is what worries me. Your pond is very green, I do see that.

I was also unable to open up the zip, I will follow the link that esshup listed and see if I can have a look. I also need to get some fish traps, can I ask you where you got them from?

I don't think I saw it mentioned, but did the kill follow a couple of cloudy days? What are you doing with all the fish, it must be very difficult to get that many fish far enough away from your house? I know it must be such a blow to try so hard to get it right only to have the fish die, and I wish I could offer you more than my sincere condolences, I fear I am on the verge of the same problem as you are having and I am at a loss, but I am getting some great advice if you want to go have a look. I hope you can find a solution to this.