My N. bical. has a bit of slimy, green algae-ish growth on the top of its potting medium (long fiber sphagnum). I tried removing the offending sphagnum and putting new stuff on, but the algae seems to have grown back. My initial thought was that it was due to poor air circulation, but I'm not sure that's it. I've isolated the plant in its own terrarium, accompanied only by U. sandersonii, in the hopes of preventing the spread of this unsightly pest. I was wondering, however, if anyone else had this problem and what will correct it. Thoughts?
I guess my other symptom is that the N. bical. is very slow growing. I've never grown a bical before, but it's putting out one leaf for every 4-5 other Neps are putting out. I'm thinking it has something to do with the potting medium.