when i bought him (25cm) and now (40cm)

Hi, This Darwin, my WAL. I bought him 3 months ago, he was 25cm. Now, he is 40cm. I kept him with 3 polypterus endlicheri (25cm). But I went on holidays while 3 weeks in august. A friend fed them every two days however, Darwin killed my 3 polypterus... So be careful if you want a tank mate...