so it's been about a week, and the plants seem to be doing ok. I've seen a tiny bit of the wilting I know comes with repotting a tree like these, and the HC has shrunk back a bit due to the lower humidity, but nothing is dying.
The one negative I'm observing is the water. I've been doing 100% waterchanges every other day, and by the end of day 2 the water is noticably stained light brown. I'm guessing this is from the sculpey, and is less than desirable. I've been keeping waste water in a 5g bucket, and it has a slight oil slick on the surface. It must be the sculpey releasing something. Unfortunate, I had high hopes for this. I'm sure it will be fine for just plants, but it would have been nice to have some shrimp too.