Hi guys, I just bought my setup today, and I told the guy that I wanted to get puffers. He told me that I needed a brakish water tank. I had the same puffers and setup 2 years ago, but I moved, and I forgot my knowledge. I said I wanted the green spotted puffers, and now he's telling me I have to make a brakish water setup, when last time I am pretty sure I had a freshwater setup. Am I mixing the green spotted puffer with the dwarf puffer, because I want the one that is freshwater... Thanks