I think you just don't have a large enough aquarium to house an aggressive breeding pair (or harem) of dwarf apistos along with several other species.
That ad could make the best of craigslist, except that only fishkeepers would understand the humor!
I usually take out the plants and other items that have BBA, put them in a bucket with a little tank water, and then treat with hydrogen peroxide, to
What would you recommend then? A harem of apistogramma and more harlequins? I suppose it would look quite nice but personally I prefer a few more species
I would try different levels with your LED fixture.
It is worthy of note that the Ocean Revive is not of the best PUR for photosynthetic