Hi everyone!!! I just bought several bunches of horwort for my 125g oscar tank. The tank right now only has stupid plastic plants. I would love to plant it but don't trust the oscars and the pleco. Anyway, when I get the hornwort, do I just stick it in there and let it float? I read somewhere that once the hornwort uses up all of the nitrate in the water that they will die. Is this true? Do I just need to replace it when it starts to look gross? I know that I shouldn't buy plants unless I've researched them but this was on ebay for super cheap and I thought that I may may have finally found a live plant that I could put in there.