Has anyone ever had a problem with sailfin tangs not eating anything? Mine will not eat flakes, frozen, nori or pellets, but luckily, he is constantly grazing on the rocks. All my other fish are pigs and have gained a ton of weight since I got them, but he has lost some weight. I've tried putting nori on the rocks and clip, but he will not even taste it. I've tried garlic and selcon on it, and still nothing. I've also tried ulva from my sump. All he does is look at it, and then turn right back to the rocks and starts graising again. My tank does have very short turf algae all over, so he is getting some nutrition, but I'm not sure if it is enough or varied enough for him. You can sort of see the algae in this picture.
240gal display 8ftx2ftx2ft (240gal tank + 240gal water with tank and sump)
Tried nori, ulva, TDS pellets, flakes, small clown pellets (forgot brand), Neptune pellets, and algae pellets

240gal display 8ftx2ftx2ft (240gal tank + 240gal water with tank and sump)
Tried nori, ulva, TDS pellets, flakes, small clown pellets (forgot brand), Neptune pellets, and algae pellets




