After dosing the chemiclean Red Cyanobacteria solution twice, I can finally say it's all gone. I considered doing a water change to get sludge out, but there is no left over dead material at all. I think my snails got it take care of.
Also I can't do a water change yet anyway cause it would spike my phosphates and GH/KH.
This might be a tank where I only have to do a water change every few months, so far the high plant count and filter have it taken care of. Stocking will be generally low bioload too since it's all low bioload animals.
So far I've got Least Killifish (Heterandia Fermosa), Blue Dream Shrimp, and a lot of pest snails that I added on purpose like Trumpet, Bladder, and Ramshorns.
I'm planning to add Zipper Kuhli Loaches (Dwarf species), and Pygmy Corydoras. This will be a 3 species community tank for my 20 gallon.