Increasing bacterial diversity can be difficult once other strains are established. it is just a matter of competition.
Adding a bottle that contains a small amount of bacteria is just not likely to outcompete the existing multitudes of bacteria that are already present and competing for the same space and nutrients.
Live rock at least provides a substrate where the bacteria are already well established. That MAY help in the competition. The possibility of adding pests is considerably over hyped.
Adding a bottle that contains a small amount of bacteria is just not likely to outcompete the existing multitudes of bacteria that are already present and competing for the same space and nutrients.
Live rock at least provides a substrate where the bacteria are already well established. That MAY help in the competition. The possibility of adding pests is considerably over hyped.


