The big als i deal with awesome, all the employee's are on a first name basis with me and the fishroom manager always hooks me up with great deals. The only time i have ever had a problem with any fish bringing disease into my tanks from theres was when i bought some mollies, luckily i caught it in time and saved my fish. I should also add that the tank had no dead fish and no fish showing any symptoms when i bought the fish, but they also ended up with an ich outbreak in the store tank a day or 2 later. This happend to me about 2 years ago, no problems what-so-ever since then.