Banded killifish like turbid waters? Where'd you get that information from?
The banded killifish has two subspecies. The eastern which I have and the western which I have no experience with. My research has shown that the western is actually very susceptible to degradation in water quality, including sedimentation. They don't handle turbidity well. The eastern subspecies is far more tolerant to sedimentation but doesn't prefer it. Because of this tolerance, the eastern subspecies which has been introduced into the western subspecies' range is colonizing new areas and out competing the native western subspecies. Fairly strange in that little hybridization is being observed...
In the wild I generally collect banded killifish in the vegetated backwaters of generally clear medium to large rivers. I know of a few clear lakes that have them as well. If anything they seek out clear water. If it's rained and the main river is muddy, I'll see them concentrated in the cleaner clear flowing mouths of small feeder streams. The pond I have them in generally stays clear, but will muddy during exceptionally heavy rain. One inflow area is always clear and the killies concentrate heavily here.
