I like your thread my friend. I have seen this gentleman's collection in person and believe me, it's fantastic!!
I would like to comment on some earlier questions/comments on lighting and holding color. It's my opinion that reds don't like higher light, greens do. I keep my acans under LED with very good success and have had some intensely positive morphing under bluer LED. I have a couple of AllDelights pieces and they kept their colors from T5 to LED. When I switched out my Kessils A150's ocean blue (20kish) to a Radion I was having an issue with the artificial light program and went with the natural sunlight program at 40-45% intensity. This changed the light spectrum to a more 10kish range. In a month all my reds went to the orange to burnt orange side, yellows faded out, oranges became very bright and dominant in my rainbows and greens got greener. Additionally, the polyps didn't expand as much and were less puffy. Now that I have changed the radion program to the more bluer radiant program at 50% which peaks at 14K my colors are so much better and the rainbows are becoming more distinguished again in a week and I'm seeing hints of yellow again and purples are really nice. Plus my colonies are fuller with very good PE. I am hoping that in time my reds that became orange will become red again but if not I will add some red ones. So definitely in my opinion acans want the bluer spectrum of light for holding color and good polyp extension