Just this morning I noticed that I no longer have the usual congregation of fry on the surface of my outdoor grow-out basins. I decided to investigate and I found these:
(image copied from Frog End Wildlife Blog)
Lots of these carnivorous larvae preying on my dear fry.
I am very devastated with these creatures decimating my fry. In one tub where i grouped all of my biggest fry, only two fry remain. :(
This is a picture of an outdoor basin that I have.
Right now I resort to removing the predators one by one with an asepto syringe. Any other idea to spare the rest of my remaining fry from this disaster? Useful advice from other breeders who have dealt with a similar situation will be very greatly appreciated. Thank you.