The old school way was to keep alk super high but in my opinion it isn't necessary in todays day and age. I believe the coral would prefer to be closer to their natural range. That said I don't think it is your issue in terms of polyp extension.
Yeah i agree. double checked my dkh and it's only 8.2 so i don't think so either..
just don't get it. i feed heavy and have ton's of flow.