Ya'll are right. Bad choice of words, 'mobile'. Maybe just that they dont swim right into a fishes mouth as fatheads do make them populate more. My shiners are the best, but maybe a little too mobile. May have to hope for some gambusia(or stock a few) if ever get any rain.
What are the best grasses to plant for grass(glass) shrimp recruitment? I planted rye in Nov. What other grass would be good?