Finally something fishy is going on in my fish tank, for months I've had about 4 of my largest tilapias guarding the breeding pots. Never more than one at a time in or around the opening of the pot.
Tonight I went out right before dark to find an orgy of 6 to 7 fish spinning around, head over tails, 69ing each other. This took place for about 3 to 4 minutes, with a short resting period and than another round with 2 to 4 fish.
I got the fry's when they were about 1 inch in size, 10 months ago. Some are now 9 inches in length. I was thinking the guy that sold me the tilapias had changed all of them chemically into males...maybe not!