Trolls. :troll: If you are called a troll, it is because a) you live under a bridge, b) you're one ugly motha or c) it means you are someone who gives bad advice, despite knowing that the info\advice you gave is incorrect and harmful, if followed. In this case, the answer is "C". Now, there have been instances where the people offering advice were just misinformed. This happens and will hopefully be corrected. This is a whole other topic by itself but in short, do not give advice if you do not know about the topic. Let other people help.
http://www.aquariacentral.com/forums/showthread.php?t=48658
http://www.aquariacentral.com/forums/showthread.php?t=48658