Mantra is ~2 years old and last ate about 2 months ago. Before that he had not eaten since October. In October he weighed 1,300 grams-ish, 2 months ago he wighed 1,051 grams, today he is 1,013 or so.
How much weight loss is too much? Should I try live food? He's been extremely grumpy in his tank, hissing at me all the time when I try to touch him.
His temps and humidity are perfect. 90 on hot side, 80 on cool side, humidity at about 50%.