Well, it looks like my cycle is moving along nicely. I added half cured live rock last week and my ammonia level is 0.25, nitrites 0.2, and nitrates 15. So, a cycle appears to be in the works. My starter kit from Red Sea came with some Calcium and PH supplements. One is called Calcium +3 and the other is called Buff. If I am using a reef salt such as Red Sea Coral Pro or Reef Crystals and doing regular water changes, are those supplements necessary?