As stated in ,y post to Werners thread. i'm also new to Marine Aquriums, I bought a ready set up display tank from an aqurium. I have 3 clown fish and an anenome and 4 live rocks. I'm concerned about my levels? I tested for PH, it was at 9, the shop said to test for KH, which I did and it was at 9, and to put in Cape Coral Care PH & KH Buffer and test again. The PH stayed the same but now the Kh has dropped to 7 to 8? I want to get the rest of the tester kits, but at this stage I'm already stressing about my levels! Can anyone tell me what the heck is going wrong? I've got 7 years tropical aquarium experience and I'm now feeling rather clueless???