I dont know for a fact how they compare but I would assume they are very similar in nutritional makeup. Stay away from feeders they are basicaly all calories from fat.tscharf;4617009; said:no my avatar is a fish i lost about a year ago.... ive been raising cats like this for a while.... just had a question on the pure nutritional value of goldfish, pellets, and silversides. how do silver sides compare to tilapia?