I have always been allergic to penicillin, amoxicillin ect. A few years ago whe had a shrimp cocktail for a appetizer before our dinners arrived my eyes were almost swollen shut. I talked to my doctor about it and he mentioned that I might be having a reaction to the antibiotics in farm raised seafood. After a couple months I tried wild caught and no problem at all. I had the same reaction with farm raised salmon. We have been a strictly wild caught family ever since and no problems at all. It's hard to come by in our local grocery stores but when its available we stock up and vacuum seal them in 1lb portions.And I only ever feed raw wild caught seafood or frozen fish food specifically made for fish. Farmed and wild shrimp are two completely different things and farmed isn’t the best for our fish either.