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=-not-new-rummynose-tetras-died-#1 Ive had 7 rummynose tetras for months now..... Over three days I have lost ALL but one! I added three rainbow fish a couple days ago, and also a cory. I had changed my water a couple days before I lost the first, and then decided to change it again to make sure it was clean. I am confused since it is only that fish that has died. Sad they were my favorite! Any ideas? bluefish123 2013-01-18