Well I traveled 250 miles north of me to pick this guy up near Chicago. He is a Red Sea Regal that has been in captivity for 4 years and eats all types of prepared foods. He is still a little skiddish as he is adapting to his new surroundings, but he is already pecking around, looking for food. i would say he is just under 4". He is absolutely flawless. Sorry for the bad picks and dirty glass. Taken while he was temp acclimating after the drip acclimation.