Quick update (no pics today haha!).
Yesterday (day 10) I had a strange mix of results. I have seen no ammonia at all, but the nitrite was a a bit odd.
Before work (11.5 hrs after re-dosing) the nitrite was the highest it has been - between 2 and 5! Perhaps I put too much ammonia in??
I re-dosed anyway before work and then measured again when I came home at one hour intervals (my husband has gone away and I was bored!).
The results were 7pm 0.5-1, 8pm 0.25, 9pm 0. Then I re-dosed.
This morning at 8.30 (11.5 hours after re-dosing) I'm getting double 0s.
So now I just need to re-dose it and tomorrow or Sunday I will drain the water and go FISH SHOPPING Hurrah!