Also, at lower temperatures fewer feedings are needed, as the fish's metabolism subsides. I feed my darters once to twice a week in reduced amounts. If you include some domestic darters in the tank with the wild-caught darters, they are more likely to accept the strange foods. If no darters are available, then some minnows can do the same thing, and they can double as dither fish, encouraging the sometimes-shy darters to come out of the rockwork and make themselves more visible. On the other hand, too many minnows or aggressive-feeding fish can be detrimental, as the benthic darters may not receive their fair share of the groceries.
Darters really require no more care than a well-maintained aquarium.
Their diet might be a deterrent to some people, but in my opinion, if you're going to keep any fish, they deserve some meat in their diets. Since the invention of the powerhead, a stream aquarium is now easy to simulate. For the hobbyist willing to venture into some uncharted areas of the hobby, darter keeping can be a rewarding challenge. Most species exhibit fantastic colors, all exhibit interesting behavior, and much is unknown about their aquarium care and even their natural history. Many species are also easily cultivated.