I have the Seachem Stability product but also have a relatively heavily planted tank. I know that Seachem claims their product includes anaerobes but I still am encountering an ongoing read of nitrates. e.g. - 5 to 15 ppm and continue to need frequent water changes.
I have recently reduced the nitrates slightly by putting some rooted plants (Pothos) into my HOB filter, rooted into a mix of peatmoss and sand covered by gravel, ceramic rings and lava rock. I'm still not satisfied because I want to see close to zero nitrates.
Not all of my plants are growing with great gusto. Notably the wisteria are growing slowly and the hornwort which is surprising. The Rotala indica is growing great. The Cryptocoryne affinis is just beginning to spread after 4 months and my Vallisneria americana gigantea is growing like mad but not spreading. The Java fern seems to just reproduce and decay. I'm not sure about this plant, as to how it should behave.
I really expected to have zero nitrates with plants. I've tested my substrate of peat and sand with a zero reading for nitrates. I've trapped out a lot of the snails. I put some purigen in the filter. The nitrates still persist.
Anyway, I'm thinking of trying to dose with Stability again. I wonder if I might have better results if I shut off the filter for a while and dump the stability in there. The anaerobes might establish in the mud (peatmoss & sand) at the bottom (???)
Sorry for rambling off track a bit.
Abbeysdad; Interesting you use the term bacteria/archaea. I use this often in my writings and thought I was the only one. [I may have been the first to use the term archaeal]