It only your 3rd day .. Don't worry too much about it. Cycling takes at least a month to complete. You can add a market prawn to speed it up abit.
Since you are using nsw, you can get ca supplements to boost it up.
Meantime you can monitor your parameters 2-3 times weekly to monitor your cycling process.
Patience is key at this stage. But there is no shortcut to proper cycling.