knowing next to nothing about the plants I was about to commit to my tank, i looked them all up on the youtubes , mostly on tropica's channel but a video by Jurijs Jutjajevs from tropica's greenhouse popped up and he advised chopping off the emersed leaves (except for C. Parva) so I did with the wendtii I got first and the other 3 types (Petchii, Nevelli, and a mystery one) I have in my new cube -and it works , the only leafage I've lost was the odd stray emersed leaf, and the immersed ones sprouted up really quickly to replace them , the ones I planted 6 weeks ago look like they've been there forever, they look like nothing for a week, then the leaves start coming