Sugar called me and i gave her a few suggestions.
After talking to her for about 20 minutes and learning her procedures I am led to an educated guess she has a bad batch.
For her last 3 remaining I mentioned a hospital tank standard with tap water /brita filter and REPTI-SAFE from ZOOMED which she carried on hand- OR- Bottled water with electrolytes. To be very honest her procedures are all followed well and her responses were above standard and were at the intermediate levels of frog keeping. She will be getting in touch with me on the remaining 3 tadpoles she has left and their progress.