((((Hugs)))) Thank you three for writing. I really needed it : ) Jerrymeola, you've literally picked my heart up off the floor with..."your plants are displaying the results of the first damage not your work." : ) I've been checking on them every 6 or so hrs and just shaking my head.
It's such a roller coaster watching these plants wax and wane and wonder which will make it and which won't (wow, that's a lot of "w"s! : ) ) I'm going to take *all* of your advice, actually, I've begun to already--the plants are in a shady nook atop the mantle and as of after the below picture was taken, all the plants, save the ivy, have no water in their "reserve" bowls (that's only because I rooted ivy in water successfully many years ago in Michigan.) As of tomorrow, it's spray bottle misting only with no fert! : )
The unidentifyable ivy-ish plant, despite water, is crispy and looks like it may be a total loss. The ranuculus' seem hydrollically stable, at least that's to say they're not falling over limp, but they took that initial sun *hard*. The kaloche's leaves are a bit limp (I'm thinking stress + too much water,) so it's gone dry now in an attempt to perk it up (it's also being supported by straws, it's a bit top-heavy.) The croton's youngest, bottom two leaves only today look fried--but all the rest look really good. So the best bets for survivial seem to lie with the "coconut" plant, the kaloche, the ivy and the croton for sure. (hold on, I'll pop downstairs and snap a pic or two of the little "coconuts", some sort of rhyzome, to show you, too...o.k., they're there now : ) Each stem emerges from one of these rhyzomes.)

I've read the primers here on semi-hydroponics and the one on Ray's website, can anyone think of any others I can read to help me figure out this new-to-me-medium? (In MI I could grow almost anything, in water, in soil--I had a collection of ivy and african violets, cleomes... But here in AZ...

Just water isn't enough, roots are weak to form if at all, and soil...*so* bad with fungus gnats! Even out of newly-bought soil. I've even gone so far as to follow the directions for baking soil in quickly an *oven* to nix any beasties. So that's why I've turned to Hydroton : ) The middle path : ) My only luck in AZ has been with orchids
Thanks guys : ) I'll let you know how they do.
Bunny