I kept cardinals and neons before. Can last to a year but seems like one by one will die off. There is some kind of disease that one by one starts to have a white spot on the end of the body where the tail is, then the white spot will grow bigger and bigger and all this while the fish will start to slowly die off. Once the fish is dead, then another one will appear with the white spot again. ...
Strange.
Have you guys noticed also, how LFS have very very beautiful cardinals on display at the front of their shops then after few months you will notice that there cardinals have also all disappeared due to sickness. ...