OK, let me try this from a different standpoint instead of me preaching at you...
You guys who are growing these "rare" cryps, what helpful information can you share on your success with these plants? Particularly those that you are able to propagate.
A) what are the growing conditions you are providing?
B) how long have you had the plant?
C) how long is it taking to see growth? How many plants have you been able to propagate from one plant?
D) have you tried to alter growing conditions in any way to improve growth? Altered water chemistry, altered substrate, changed lighting...
E) Do you know anything of the natural habitat of that particular specie that you can share? Is it a black water Cryp? Is it known to be a bog plant, swamp plant, or deep water plant?
F) Can you post photos?
None of this is meant to be a judgement, but information that we can all learn from.
Nood, I was reading your journal, and many of the plants look like they are doing well. I get the impression you have had them for a relatively short time. Can you share anything you have learned from keeping these plants? And would you mind telling me where you are getting them and who Nick is?
I realize this is lots of questions, but I am really trying to get more info out of you guys. It would be very helpful to me and I am sure many other people reading this.
You cannot just make the assumption that all Cryps are the same and should be able to grow in any aquarium, because thats really not the case