Scooter blennys def change color alot. They can camoflageand also change color depending on there moods exspecially if its a male wich you can tell if they have a fan on the back of there head. Mine used to do this funny dance and flare his fan i loved him. He lived in my 10 galleon for a year and a half and loved frozen mysis. When i upgraded to a larger tank i don't know if it was the shock or something but he died like a month later
