Nori clips are for wimps! Hand feed those tangs! All kidding aside. I have always had bad luck keeping those things stuck to the side of the tank. Best one I had was DIY to a magfloat.
But he's fat and happy :p. the yellow tang on the other hand still has a pinched stomach. Looks a little better since being put in and he is actively feeding. But I haven't been feeding the seaweed yet because the clip I have is junk. The new one gets delivered Friday.