Yes I understand the general ecology of a tank being an ecologist and all.... The whole point is finding the right balance so that you are encouraging plant growth while not creating an environment that isn't MORE beneficial for undesirable lifeforms (e.g. algea and diatomes).
To do this we typically find the right balance of light, nutrients, and source of carbon so that there is not access of any particular component. In my case I am concerned that maybe I am giving this system too much CO2 or potentially not enough of the other necessities.
It would not be a concern to me if it were not for the fact that I can tell it always seems to effect the initial growth of all my plants by blocking out their light source. The plants grow much faster until the diatomes cover the plants and growth is immediately stunted.
As for fauna I do have both cherry shrimp and ottos that are working at it, but they don't do a great job of cleaning HC in my experience.