results was terrible.
PH 7
Ammonia 0.5 - 1
Nitrite 0
Nitrate 0
Came home, dismantled everything, got my syphon in there and sucked all the poo and mess out of the gravel along with nearly all the water. Re-filled the tank and put everything back - along with some more gravel that I'd washed in the old tank water. The fish are moving round a lot more now, the water is a bit cloudy but expected that after stirring up the gravel. There's a part of me that's hoping that the ammonia has now peaked but I'm not counting on it