Ok I will be off line for a bit here but want to pass on a lil info.
You all know how much betta love bloodworms and I personally feed them to my fry quite a bit. Bloodworms are not all created equal. Some brands are produced in China and are gathered from ditches swamps ect. then flash frozen after arriving at facility. These usually are the cheaper worms at the store and go by San Francisco Bay ect. There is a much higher danger of a parasite getting your fish from these brands than a brand like Hikari which uses a cleaner collection method and a 3 stage process to eliminate parasites. Also Hikari adds a ton of vitamins to make the worms a decently healthy diet addition. Just look at the ingredients. Its not all about the first couple things on the list of ingredients the last few can matter a lot as well as the production process. The better worms always cost a bit more but are well worth it in the long run. Just passing along an opinion.