yah, i think deficiency is a possibility, but it's a new planting, about 6 months - it was a complete reno and redo, all the way. it's a giant 'tropical garden' inside the atrium. light can't be a problem, as right next to this plant there are many anthuriums cubense and also aspleniums and many other tropical plants that do not take strong sun - they don't have burns.
in any case, next time i'll take more pics and see how it's doing
