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=new-member-with-fish-truble#1 About 14 hrs ago i purchased 6 2inch red bellied piranhas nd i have introduces a blood worm to the tank nd they have not eaten it. Is this because they are not hungry or am i feeding them some thing to big? Newbpiranha 2011-10-13 http://forum.aqua-fish.net/?topic=new-member-with-fish-truble#2 Fish may be ignoring food during the acclimatization period. Many of our visitors (who keep Piranhas) have experienced such problems. Sometimes heir fish weren't eating for over 10 days. jan 2011-10-19