Nice. Keep an eye on him and see if his health improves. Adding more glofish will be great for him as he might feel lonely. A school of glofish helps not only to spread the aggressiveness/territorial issues but it will also improve their health. They are social fish and like to be between themselves. My fist two fish were glofish. After having a school, one of the first original two disappeared in one hot summer night and the health of the other started to deteriorate. I think that he missed his original mate and stopped eating. I had to euthanize him.