He is one good looking blue veiltail there you got there, very impressive blue veiltail. The color you have is really rare to find, looks like he is a royal blue with a possibility of HM genes in him since he has the deep rich color and black speck in his fins usually found in steel blue bettas or turquoise/ green bettas HM love to see a pic of him flaring that would be a sight. Again very impressive blue veiltail I have seen so far since my steel blue butterfly veiltail passed away, I have not yet seen another one like him around and a first for you blueberry veiltail.