powder blue tang eating bit not gaining weight
he eats nori, other types of seaweed, red, brown, stuff from rocks, glass, but will not eat flakes or anything, and he seems to be staying with the green chromis i have in the tank which i think is odd. because the chromis are eating the seaweed off the clip also. what can i do to make him eat from the water column he will look at the food that the other fish eat but will not touch it. should i just wait or be concerned about him cause i dont want to lose this fish. any help thanks.