Yep, ornates are C. Ornata,
the rest C. Cranwelli, everybody are albino ( no uvb!) just different morphs.

No RO water, it is very "clean" and not suitable for frogs. They need these minerals that are in a tap water, but you need water conditioner to make it safe for them. You can use any fish tank conditioner, i use prime by seachem, cheap and lasts for a very long time.

Check this up http://www.frogforum.net/vivarium-te...hing-else.html

and yes about the substrate, do you see these big chunks in there, if ingested it may end up badly ( impaction), and if not it will irritate their skin. Go for plain fine coconut fibre, but it had to be wet, but not mud like, in sone of the pics substrate is a bit too dry

they all are so pretty! And you can probably sex the bigger ones, they are about or over 2,5- 3", am i right?