Interesting experience at PAH, I recently purchase 10 ember tetras from PAH, my local excellent fish store does not have them, and said they won't order, saw I saw them in PAH,, on putting them in the tank I noticed one was swimming on its side, and not mixing with the others, so I knew what would meet me in the morning, and sure enough it was dead, so I thought I would return for a replacement as PAH is only 10 mins from my house, when I saw it was dead I immediately did a water test, all was good, so I saw the manager, who said he could not give me a replacement till I brought in a container of my tank water for him to test, I told him I had already done so, but he was adamant contiuly saying its store policy, I explained my water test was a liquid test, and asked him what do you use, he said strips, I then explained that they are not accurate, which he said the strips they use are 100%, I then said we'll I will buy one fish, they are £2.50, then I will bring in the sample tomorrow,
He then said its company policy we can't sell you a fish til your aquarium has been tested, so just because my back was up I returned with the sample and the test was fine, so he replaced the one ember tetra