I am a NASA Bioengineer, and my story was picked up by the awesome people at vbs.tv. I am constructing an Undersea Colony, and was told there was some interest, so ask away!
My son is a reddit user and brought to my attention that some of you were interested in my project. I'm fairly busy today and won't be able to dedicate a whole lot of time to answering every single question, but I'll do my best time permitting.
You can view the Vice feature here: http://www.vbs.tv/watch/motherboard/the-aquatic-life-of-dennis-chamberland
And this is the website for my project: http://underseacolony.com/core/mainhub.html