My lobo looked just like that when I bought it and I thought it was going to die, it did fine for a couple of months without feeding, just with the lights. About two years ago I started feeding mysis, turn off all the pumps and drop some with a turkey baster right at the mouth, slowly but surely it recovered and now it is gorgeous, you cant even see the skeleton anymore. Good luck. Oh and I would do a water change, nitrates are kinda high, you dont want them to get pass 40.