Kitten - its essentially the same tank as my 10g... just took everything, all the equipment, sand, rock, fish, inverts, and water, and transferred it into the 20g after I made sure it was clean! Then yesterday eve I added the starfish!
Bear - I am gonna save all the fancy lighting, corals, etc for the big tank. I for sure want to keep this tank a FOWLR so I can have some non-reef-safe stuff in there, like that starfish. The whole family has been dying to have a fat starfish like this one, but they're not reef safe, so I never got one for the big tank. Since I expanded the little one, now I have some room for some more interesting stuff that we can't have in the soon-to-be-reef tank!
I don't wanna strip out that hood, because as soon as i get some different lighting in place I think we may sell the 10g, or put it up somewhere and keep it just in case I need it for a hosp tank or something. Not exactly sure what kind of plans we are going to do for it... thought maybe we could DIY a light strip and attach it to the hood after he makes it. I'm glad my Hubs is so handy!