Yes, locally, there aren't many serious collectors, so rare species that are not so vibrant go unoticed.That's too bad, that you can't find buyers for the fry. They are quite rare. I suppose that you could make them feeders, but that would be a shame really.
Sorry to hear about the C. Panaw. It's amazing the small gaps that they can get through.
Yeah snakeheads are amazing at slithering through small gaps. They are also very strong to lift the lids.