the acei is such a pig!!! steals all the food. Like his character, yep has no yellow anywhere except on tail, I thought they were blue fish...do they change colour?
They can but some variants are darker than others. If it is a black acei then he will stay very dark. Most acei are pruple. They can change color based on mood or the decore in the tank. When I had my acei with play sand they were pretty light. When I changed to black sand they got darker.