I have a Randall's Goby that is cute and social. He likes to leave his shrimp and come out to say hi to everyone. I also have an orangespotted shrimp goby that fiercely protects his prawn even though the shrimp looks more like a lobster he is so huge. Then I have a gorgeous yellow shrimp goby that is very lonely, he has had bad luck with shrimp. My favorites are definitely the yellow and the Randall's. The Randall's has the best personality and the yellow is the "underdog" so you just have to love him. Hopefully one of these days I will have luck finding the yellow a friend.