I don't know what the deal is, i've had him for about 6 months. When he was smaller he would come greet me for feedings, follow my finger across the glass etc. For the past month or so he has been in a 55 with a group of small Silver dollars, things were normal at first but after a few weeks he started hiding whenever i approached the tank. Ive since setup a 40gal breeder for him hoping that this would change his skittish habbits, however it seems worse. Any suggestions to make him more soical and less scared? BTW he is a 4.5-5inch ZZ male.