Please fire me. I work at a pet store. We have a 30 day guarantee on freshwater fish. At least once a week, someone brings me a dead plecostamus (algae eater). I refund them/exchange the fish, but I have to find out what happened first. The first question I ask is if they have a lot of algae in their tank. “No, my tank is clean!” Then I ask how often they fed the pleco algae wafers. “I didn’t know I was supposed to feed it! I didn’t know having a fish tank was going to be so complicated!” But it’s my fault that your fish keep dying, obviously.