Blood worms for saltwater fish?

[Rattooth]

I have bought by mistake , more than once the Fresh Water Multipack, instead of Saltwater Multipack. One of those is blood worms. I fed to salt water fish . No problem.

 

[canary]

I have a pretty new package of frozen Hikari bloodworms...is it a truly bad idea to feed them to salt water fish?...If so, why?... I have 2 ywm, a purple fire fish and chalk bass...I would chop the worms a bit since the fish are small...what do you think?

All the iron in them boost there immune system and takes ich away I have a red sea Bannerfish that will only eat those and mysis shrimp absolutely nothing else they pair very well with mysis shrimp