Why can't I get this right? I've mentioned in other threads that I lost my entire lot of fish about a month or two ago, and finally got some new live stock this past week. But then last night I look in the tank and I can't find one of my clowns. Sure enough, another casualty. A clown, one of the hardier fish. I do water changes, filter changes, param checks and the whole deal frequently. I have ten different kinds of food that I change between. I know it's gonna take a while for me to get the hang of everything, but I'm so friggin discouraged and tramatized by these poor fishy deaths that I'm about to swear off the hobby! Any words of advice?