So, I have this pond that has a lot of golden tilapia in it, none of them very big. Seems like the limiting factor in their growth is mostly food (I haven't been feeding them anything because I thought they were goldfish), but perhaps also space. It is actually a pretty big little pond, say 50 feet long, by 25 feet wide, by three feet deep at the deepest when it is full. At a guess, there are about 400 fingerling size fish in there, the biggest ones are perhaps 6 inches long. None have really gotten much bigger than this in the two years I've been here.
Do you think I need to thin them out about to get them to grow to table size, or should I just start feeding them up and see how big they'll get?
There is a pretty good biological system going on in the pond. I haven't don any measurements, but I would say there is lots of phytoplankton, there is salvinia growing on top, and various weeds like wedelia and different typoes of grass hanging down over the edges into the water. So, there is some food supply for them already. I figure I'll throw them worms out of the worm farm, and leftover scraps from the table. Maybe set up a solar lantern to attract bugs to fall on the surface. Any other ideas?
caretaking 14 acres of ridge and gully land at Huelo, Maui. 400-500 ft above sea level