Thanks all, I’ve read all your advice so far and very much appreciate your help.
My plan now is:
- change 20% of the water first thing tomorrow and again each day until I am sure the nitrite/nitrate levels are correct.
- Pond Prime is being delivered tomorrow so will read instructions and apply
- API 500 test kit will be delivered on Sunday so I can actually understand the levels and try and sort them
Hopefully I can save some of them.
It seems the nitrate cycle using sacrificial fish is what I’m now doing without intending it. Not really the way I like to do things, I’m the sort of person that lets insects out of the house instead of killing them
Really annoyed with the guy that sold me these fish (and provided the pond advice) but accept I should have researched more, just got over excited!
I will post updates as things progress.
Cheers.