Bro Jervismun, u may wanna test yr Mg level! I'm using AM Reef salt and the Mg level is rather low. I spend a lot of $ to get additives inorder to raise the Mg!
I'm using 2 bucket (15L) of AM Hydrocarbonat as the substrate too. So far my tank only 3 mths old, so can't really comment much but one thing for sure, my CA is very stable!
U sure got deep pockets! I'm oso looking at the NR1000 and may most probably get it from online store as it's much cheaper, ard 30 - 40% diff! Nice setup and very prof equipment tat u r using! Upz......