Pond Boss Forums AQUATIC VEGETATION Controlling unwanted plants how often to add beneficial bacteria?

This has been a frequent subject on the forum. I can't find one of the better threads about it from several years ago. But, if my collective memory serves me at all, I believe that the general consensus has been that beneficial bacteria provides a minimal benefit.

My younger son worked for a team of pretty smart soil scientists for a number of years. Part of their work included installing and maintaining all types of conventional and alternative waste water management systems for homes and businesses. At least in these applications, they felt that adding beneficial bacteria was only beneficial to those selling the product.

I believe that several regulars PB members supply such products. Possibly they can provide a little more scientific information and backup.

Ken