[reefwiser]

Have you gone into the pump settings and Refilled your container. Once this is done the level should show green. You will need to do this on all your pumps and then you will get a blue and white pulsing of the led's
The pump once calibrated with your ML's and speed will subtract the amount dosed during the day lowering the level of the container and you can set when you want to start getting a warning at the level you set on each pump.
Example:
Refill at 150ml
warning light at 100 ml