I received my Mata Mata on June 12. The first pics show the little bugger just out of the box. the second pic is from today. I would say it has doubled in mass. His head is least twice as big.....Name is Morphius. Feeding frozen silversides and small feeders as he can catch them. I hope to end feeders eventually when his tankmates wise up to frozen. I tong feed him although he gets plenty of feeders ambush style. I will post more pics in a few months as he grows!!