Yea i have had orange red purple and blue the purple ones u gotta feed i didnt know till was too late oops. The orange had for two yrs but they r like sea hares and just keep shrinking and shrinking till poof they gone blue ones seem to die fasterand shrink faster my brother had one for yr thats longest of anyone that i know . Ive had few at a time one at time didnt matter still died good luck