I agree with LittleBlue. If they ban you for giving good solid advice, then let it be on their shoulders. You were one of the few mods on here who was fair and impartial. Others are blatant in their favoritism or their willingness to be politically correct and soft. If you are banned, I dont know who I'd turn to for advice.
The vision impaired fish I have kept never seemed to have any problems eating and/or finding food-the Lateral line helped as well as the other senses that heightened to compensate for the vision issues.
So any tips on feeding a blind betta? I scored an albino betta at Petsmart and it turns out his vision is impaired enough that he can't see pellets. He reacts to vibrations in the water. I don't know if I should return him or keep him.
Good luck.....injecting CO2 is one thing I have never done and most likely never will. The natural CO2 that my systems create is plenty for the species of plants I grow.....but it does limit me on species of plants-but not much.
Sounds like you have most of the low light plants covered....Crypts are great low light plants and some sags and vals will do well in lower light too-but they tend to do better if they can get a bit of natural sunlight.