Obviously as I wrote in an article for my state aquaculture newsletter here is a niche market someone should exploit. (producing talapia for recreational pond meisters to eat up algae).And the kicker is talapia are easy to produce and growout!
People are growing them out for food fish at ridiculously low prices (talapia are considered a lower value fish vs. other species) but not for this purpose!
Wish I had the indoor facilities!