I'm really getting annoyed, I ordered my fish over three weeks ago. Still waiting and have been told another week or so before they come in, so I wait. My tank is now cycled and I used the fishless method so I'm adding ammonia daily to keep up. My question is, could I get a dozen feeders instead of adding the ammonia daily? then when(IF) my Oscars come in I can get rid of the feeders so the ammonia level is fairly steady?