What is happening to my plant? I reguraly feed em with calmag and rarely nitro. They are in a biobiz lightmix. The lamp is set to 40% of 300w, temperature are around 27°c, ..why the leaf are curling and why only on one branch? i even rotate her to get out of the light. what could be? the one on the back left has stop growing in height. the back right is the only doing kinda fine.