Tentmaker :

The tilapia will compete for food with small CNBG which are eating plankton +. See page 2-3 Feeding contained in SRAC site below. If CNBG are on pelletts it may not make much difference if only a few tilapia. But in any event the grow out pond will only hold a set amount of bio-mass without problems. You probably would be ok if you watch it and manage it right. But those tilapia can produce and grow in a hurry so you will have to watch close. ewest

http://aquanic.org/publicat/usda_rac/efs/srac/283fs.pdf