Rad :

This post will probably not help much but may lead to you an idea or two.

If your pond's water is typical of the waters in your area of the world then think about the predators that thrive in local conditions like yours. If your fish population is very different than local waters then adjust the size and stocking rate.

The only predators that I know do well in muddy water are catfish. Sight feeders generaly do not do as well in muddy water. I know you have several catfish types in your area. I would think that those that inhabit lowland muddy static rivers and swamps might work.

I hope this helps but it is not .02 cents worth but maybe a tenth of a cents worth. ewest