Does lack of actual advice count. When I was new to the hobby the pet store forgot to mention that a certain fish needed a certain food. I know now to research before you buy fish. Obviously it was my fault too, but if I worked at a store and someone new was buying a fish that didnt eat flakes I would think I need to mention that. I also was asking about sumps before I built mine and they told me they have no idea what a sump is.....