that is why i responded to the others here, not ot answer his question, AGAIN, i and others have answered his question numerous times, and even elaborated, so he comes back and answers the same thing or another very similar question that was just answered by the detailed answer in the post before, baron i think was actually getting peaved, his one said this is the last time, but ya know what, here sven is again same scenario,
i know we would all like to help his fish be happy and healthy, but he won't listen, even giving the fact that none of us are out to harm, or profit, he still trusts the lfs, who would prefer to sell him more supplies and fish(after these die), this is how they get return customers, sell them and hope they only live 6-12 months and see you for more, but we would rather see the fish live for years(some even a decade or better),
one thing all newcomers must understand is that we cannot gain, and we aim for success, many lfs's have no idea how to keep a fish for the long run, they often don't keep their water for months, how are they supposed to know how to keep fish for longer(note, i did say most, i do realize there are some but the ratio is quite small)