In October, I bought a three-month-old Male Kinyongia Boehmei. However, he has not grown at all. I house him in a 30x30x45cm tank, he is eating and drinking as he should and I am providing the supplements. I place him next to the year-old female I have (enclosure size: 50x60x100cm) to show a comparison between the two. He used to be in the female enclosure but then I got two females and decided to move him into a smaller enclosure. Is there something I am doing wrong?