you could be right about my pH test kiy being off. i however am unconvinced. when starting my tank about 7-8mos ago, i had lots of problems getting my pH to stabilize and was constantly testing at home and then bringing it into my LFS who had the same conclsuions as i found. also, i when i get a low reading, add buffer, wait an hour or so for it to circulate, test again, the level comes back up to 8.2. i will double check by having my LFS and myself test it tom.