于 2003-04-28 12:44 Jeffix,MY tank NO3 is 10ppm,is too high?But other SPS is normal.I am check the SPS,the洞仔is not 空,only the top form purple change to white color.The SPS other part is brown color(is normal no change color).The SPS is dead or not .(the light is 150w 15000k QHI X 1 and 25w marine blue X 2 , tank size is 36L X 24W X 22H 300L water)