I personally would definitely rate them on the tougher side of things. I quickly ran into water quality issues because I was trying to feed it and a large carpet anemone at the same time. That was compounded with a failing RO unit that I didn't know of at the time. That all turned into a juggling act to reduce feeding to rid myself of cyano, while trying to keep everything alive. I sadly lost mine in the end......once it started to decline, there was no saving it. I won't be trying any more NPS Gorgonians for a while. Now the photosynthetic ones I'm having great luck with, I'm hoping to find some more colors soon, if they are even available.
Scott