ewest (and others)
I too thought the nests in the video looked like BG nests, but (to me) the fish swimming looks like a tilapia.
However, I think Tbar's eye is almost certainly more discerning than a video, and he identified the fish as tilapia.
Regardless of the actual facts, do any of our members with spawning tilapia in their ponds believe that they will use the pre-existing nests from other fish species? Since the fertilization process is relatively quick, and then the females go to mouthbrooding - it seems to me that briefly "borrowing" nests would be a huge energy savings for the tilapia?
