Only the endli can get that big and it isn't very often it does get that big. Dels only get around 30-35cm or 12-14" max. Endli a usually max out at 20-24" but can stop growing well before thatnice pickup man. i too was planning to buy one of them but cancelled it becuz ive been told tht it wont be a very good mate to my endli. as far as i know, endlis and delhezis are the polys tht can grow big. 70cm and 80cm respectively.
Only the endli can get that big and it isn't very often it does get that big. Dels only get around 30-35cm or 12-14" max. Endli a usually max out at 20-24" but can stop growing well before that