I've had this nem in my tank for going on 5 months. It did great up until recently. The last 2 months it has lost color and hasn't been extending its tentacles half as much as it used to. Everything else in the tank is doing great. Great color and great growth. It's under a kessil a350w at about 100% power. All my perams are normal, the only thing that has changed recently is the fact that I added Gfo to help fight some algae but the nem started looking sad well before that. Here is a pic of the nem before and after. Any help is appreciated.

