My first was a 4 month old veiled, I call Grimmjow. My second was a 4 month old Jacksonii that I call Tiamat. My veiled is in a major growth spurt and has been in the same spurt for 2 months now. My Jacksonii is growing slowly but surely. His left/top horn is not growing as fast as his others. I don't know what the reason, maybe it's genetic. I don't worry, he gets plenty of water and food as well as supplements. But he recently started shedding so I know he's growing. The first time he's been majorly shedding since I got him 3 months ago. I assume Jacksonii don't grow much and fast due to living in a cooler climate. If anyone has a different solution, I'm always willing to entertain ideas.