Once kept neons. All my neons died except for an enigma. a neon had survived. I started celebrating for the survivor. I had a female gup that had delivered two months ago. When i put in the young gups into the bowl and the neon seemed really happy. Before when his characin friends he was depressed. now he was the opposite and started hanging out with the guppies. the males were shoaling because of the lone neon. he died in a disease out break a month later