You're probably measuring wrong. I have yet to even see leos or motoros grow at that speed. 2 inches in 2 months is too ridiculously fast, especially for retics which dont even get as big as others. Not to even mention that this growth is on your male. As a comparison, in september 2008, i purchased a 4" female retic. A year later, this thing was still only 6" even with a main staple of raw shrimp and carnivore pellets.