We then use a 30 ml (1oz) shot glass to lightly water our seedling with 90 ml (3oz) of pH 6.5 water. We water 30 ml (1oz) on the left, 30 ml (1oz) on the right, and 30 ml (1oz) right down the middle where the stem is.
Note: Water slowly so the water runs more vertically than laterally ...