Still not hatching

The torch did not have much effect on the hatching rate of the brine shrimp. It did not heat up the water much so I have left it in a heated room. However, even when the temperature of the water was around 25 degree Celsius, the brine shrimp eggs did not hatch so I am inclined to believe that Reason No. 2 or 4 could have been the cause of the problem.