This is a discussion on Bloodworm vs Brine Shrimp? within the Freshwater and Tropical Fish forums, part of the Freshwater Fish and Aquariums category; -->
What are the differences between these two, pros or cons?...
In general, I think both are good along with a varied diet. It can depend on the fish and you also have to consider whether they are carnivores, omnivores or herbivores.
As already mentioned in above posts....good source of protein and good for enhancing colour, growth, breeding condition and overall general health. Some tropical fish don't need as much protein as others though, or are able to process it as easily and getting too much protein can end up causing health problems. Bloodworms can also cause constipation, bloat or other intestinal problems if it is given in excess and take longer to digest.
Brine Shrimp isn't as nutritional as Baby Brine Shrimp, but BBS may sometimes be too small for adult/larger sized fish. It can be good as a laxative for fish, but again you don't want to overfeed them on it.
I like to feed those foods as a treat only and in moderation.