Advice? Micro Scrubbing Nanobubbles?

I saw a big thread on reef2reef about it. Interesting, but I'm not sold on the idea. Hopefully worst case is just salt creep and it doesn't impact fish, clams or coral. Be interesting to see someone with good pH data before after and if the main benefit is pH related which can be done with kalk.

There have been a few studies that have indicated pH below 8.0 has statistically lower growth and higher bleaching than 8.2.

 

Bleaching was increased and calcification decreased at 7.85-7.95 at temps we use in the hobby:
Ocean acidification causes bleaching and productivity loss in coral reef builders

Not as good for our purpose since the low pH was lower than what we call acceptable but still interesting as the results look pretty linear and one could use that for pH of 7.8 and show lower growth (not the best science I know):
http://sigarra.up.pt/icbas/pt/publs_pesquisa.show_publ_file?pct_gdoc_id=11431