http://forum.aqua-fish.net/ A forum devoted to aquarium fish, plants, techniques and fish keeping as a whole. en http://forum.aqua-fish.net/?topic=what-could-be-wrong-with-my-male-guppy-#1 he is all swelled up and looks like he is going to blow up and his butt looks like it is bleeding.the guy at the fish store said that it was male when i got him but he looks like a female who is ready to give birth. help!! what do i do? angellady1234@msn.com 2009-09-30 http://forum.aqua-fish.net/?topic=what-could-be-wrong-with-my-male-guppy-#2 It sounds like a serious blockage in the digestive system. have you tried adding blanched peas to the tank to see if they will free the blockage mickey 2009-10-09