If my aquarium is set up and full of water, with the filter and heater in action, will the BB die if I wait to add fish until after my plants are added (in the next few days)? I assumed I would do this is this order. I had some BB on my filter biofilter, so I filled up right away after rinsing my sand so the filter stayed wet and the BB didn't die. But then I read here that they will die anyway if there are no fish making nitrates. Advice much appreciated!