looks like u are just reaching nute burn to me. back off a touch if ya want. The tin foil is a bad thing though, it will create hot spots.
tinytoon Reviewed by tinytoon on . some one plz help me i have no idea whats wrong with this i just flushed it and it worsened my ppm is running at 870 ph is between 5 and 6 temp is around 73 Rating: 5