Need advice, on problem with millipora fadding at the bottom. The upper portions of the coral look great, but it along with my toher sps are fadding at the bottom. Readings are as follows PH: 8.2, NO2=0, N03=0, CA=450, ALK=8. I have sps and lps mixed all lps are doing fine, havent had lots of success w/ sps. I've been trying to narrow the problem down for weeks. Today, i checked temp. amazingly it's right at 90 degress. Could this be causing me the headaches, and frustration. Recently, got new bulbs 20k XM's(400w). Please advise, and point me in directiion for success. Thanks.