Dont sweat it brother MFK'er the responders are just being helpful in their way.A lot of times when people ask what's best to put in a ten gallon tank it gets assumed that that person does not know much about what should or shouldnt be in such a tank.You have stated that you have had a shark for seventeen years and thats something to be proud of and you obviously know your stuff but a lot of people buy them not knowing what they require.