Here is an excerpt from a treatise on fish production written 55 years ago by the father of modern aquaculture - H S Swingle.
2.2.4 Channel catfish-bass plus fathead minnows
Originally, 2,500 fathead minnows were added with 7,500 channel catfish per ha in ponds receiving supplemental feeding with the expectation that they would be eaten by catfish. This did not occur; therefore, they were utilized by stocking 125 largemouth bass per ha. In a period of 7 years this had added an average of approximately 45 kg per ha of bass to each crop of catfish without interference with the growth or production of the latter.
This method of making more efficient use of unused fish feeds in ponds would appear worthy of more extensive testing and use.
Whether CC will consume many fish depends on the size of the CC. By the time they reach 24 in, fish will be the lion's share of the diet but at this size ... they want 4.5" to 5.5" prey. Feeding probably reduces consumption of fish. For sure they will convert all minnows that die of old age ... FHM don't live very long so there is a big annual turnover of the population after a year of two of reproduction.
