Where does one get the equipment to put oxygen into bags for shipping? I was at a "not so" LFS earlier this week and noticed the owner had a hose connected to a small oxygen tank (smokers tank) and filled the bag with oxygen prior to tying it shut. I asked where he got his contraption from but he replied "oh Ive just had it for a while". This led me to believe he did not want me reselling what I just purchased
. Anyway I ship a decent amount of coral clams and fish and thought this might help with the survival rate. Any ideas or where to get the pieces and parts?