I've been using the Bacter7 system for many months and like it. I used it on a year old tank that had both nitrates and phosphates so I was able to find my maintenance dose pretty easily.
How do you 'seed' a new tank with Bacter7 if there are no detectable phosphates or nitrates after it's initial cycle?
When will you know to cut the amount in half for your maintenance doses if you're already at 0?