Anytime you have have a open forum you are going to keep getting all sorts of questions. Many of these questions are being are being asked over and over. But you have to remember there are lots of people that are new to the hobby and they are reaching out to us for all the advice we can give them. Sure there are those that give out the wrong advice but they are still contributing to the forum. It will always be that way. I personally don't consider myself a expert but i enjoy reading the post and doing further researce to gain more knowledge. Having had tanks most of my life i have learned alot and if i can help someone wheter they are new or experienced that gives me some satisfaction. The purpose of this forum is to help each other so we can be successfull and enjoy the hobby.