I was wondering if I were to buy one or two sponge, how am I going to transfer them from the shipping bag to my tank? They really can't contact with air? Even a matter of seconds also cannot? Then is'nt it that I have to place the LFS water together with the sponge into my tank? But when I saw my LFS owner packing the sponge, they did let them contact with air, they bring it out of the tank and place in the plastic bag (with SW). Is it the wrong way?