Hello, I'm new to all of this and I'm afraid I might have messed up my pool water. After filling up my pool and starting out with clear water, I did a water test and discovered my PH was at 7.2, AK over 250, and Chlorene 0. I knew I need to drastically bring down my AK level to around 80-100 so I was planning on buying muriatic acid to accomplish this. In the meantime, I believe I made the mistake of thinking that I needed to get chlorene in the pool right away, so I added 1/3 cup of HTH Ultimate Mineral Brilliance Chlorinating Granules to my water. I walked away for 5 minutes and came back to a pool full of green water Now, I'm very confused on where to go from here. I know I probably need to focus on bringing down my AK level first in hopes that this will clear up my water. Any suggestions would be greatly appreciated, thanks so much!