I just repotted my Coel. mooreana. It too was potted in old bark and overgrow the pot. It had a good root mass. Made it hard to remove the bark. It's still sulking from the repotting also.... growing very slow! I have heard that it can take up to two-three yrs. to recover?!?!? I put mine in a big basket so I won't repot for a while.