Texas715 I have a 300 gallon tank in my basement with about 85 three to four inch tilapia that I took a net to my pond and took off the nest in June. They are growing and in good shape, have not had one to die. This is my first year to raise tilapia in my pond so I am kind of new to this. The guy I got my tilapia from said his fish just spawn in his tank on their own without any special attention. He had a small swimming pool in a heated building and the fish would spawn all year. Will mine spawn also in my tank just left alone? I have read where some people take pairs of fish to a seperate tank to spawn. He says you do not need to seperate them they will do just fine. I keep my water clean and the temp. at 85 to 90 degrees Any information would be helpful Ricky