also my wife wanted me to ask if it is common for the turbo snails shells to turn green as well. another thing is, today I tried to scrub some of the algae off with a tooth brush and it didn't come off. As of 3 hours ago my parameters are Ammonia 0, nitrites 0, nitrates 5, phosphates are somewhere between 0.03 and 1 It's hard to read the ranges on the Salifert test, my ph is at 8.4, my temp is at 78.1, salinity is at 1.027. My lighting is on a 12 hour cycle and I have 3 250w HQI at 14k, and 4 96w power compact actnics. If your curious as to what Ive stocked the tank with so far its the first post on the thread.