internal parasites

I'm curious to know if Frozen Bloodworms that are sold at LFS or PetCo~Smart pose a high / medium risk when it comes to internal parasites? Have any of you had to deal with this in the past? Does this sort of parasite find its way into Frozen Blood Worms? I'd think people would stop buying...

Hey guys! I have a juvenile EBJD that seems to be dying :( Initially I thought it was parasites but I'm not sure anymore, could it be bacterial? He isn't responding to meds. At first he would swim erratically and crash into decor and the tank glass violently. Then he started hiding a lot and...

Like the title suggests, is it possible to de-worm snails and shrimps of internal parasites? Thing is, I have a TON of ramshorn snails, MTS snails, scud gammarus shrimp, dwarf shrimp culls in a tank that I use to collect a whole lot of them when they overpopulate my planted tanks; it's a tank...