I spent a entire day talking to Cruz from elegent coral about this method. They have done this method for 15 years. Along with it being a popular method in Asia
You can check out their fb page to get more info also a thread on r2r
There is a big difference between micro bubble and nano bubbles. Nano bubbles are no more than 50 microns because of the super small size they are very slow to rise and if done correctly will rise even slower due to decreasing the weight of the water. Which is why they suggest a hard wood air stone. It is also noted to have extremely good flow to keep the bubbles from forming larger bubbles.
Almost everyone who is using this method has reported more vigorous in fish and better growth in corals, the first hours corals slime up allowing them to "shed"
This essentially turns the tank into a reef environment.
I will be starting this method on the weekend. I will keep results posted
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