They are pretty friendly for giving free water tests. I bought two koi and they died. They were acclimated properly and they gave me a water test to see why. My water was high in quality so they questioned my dead koi. I brought my receipt and my water sample, but they needed the dead fish, which I didn't want to smell up my car. In the mean time I had them in a cookie container aside my pond fence. They wouldn't replace the fish without the dead old fish, but when I waited until the next day to come to Aqua-World after work and the fish had been gone. I guess a raccoon or bird ate them, so based on their policy, I sadly lost out on about 20$ in koi.... but I got a free water test though.
My water issues were resolved and the only issue is having hard water.