Reaching for the light. I had the same problem with 2 of mine. Although the 3rd one was doing quite well, the first twio were slow to grow and had leaves lifted up as if they were reaching for something. I changed out my grow light, and replaced them with 2ea 24inch G.E. Plante-Aquarium fluoros. I also noticed that there was some minor white fungi grouping on the top of my soil. So I let my plants go without water for 4 days. 2days after the change, my plants changed. My 2 shorties, have started to grow new leaves, and othe old leaves began to fan out and got bigger. With the largest one, it decided to keep shooting up and I am very happy. Hope what I did works for u.

Maulrat