I am not sure it is a male or not. I havent seen sperm plugs in the tank. I do have a female in a tank below him (or I should say I am pretty sure its a female.) He has actually lost some weight, which was only a couple grams as he was over 800 when I weighed him a few weeks ago. But I figure the snake probably defecated and then not eating anything for 3 weeks would account for the drop in weight.