If you want plants then you are going to have to slowly acclimate your mollies back to freshwater. I agree with fort, mollies do not NEED salt. There are plenty of threads about this subject already if you're so inclined to read them.
IMO you need to give your root tabs time to work. I honestly think thats the reason you're having issues with your sword, as I've mentioned a couple times to you. It's not an instant thing. It'll take a good week to see any improvement.
I would give it a week.. if no improvement, then explorer additional possibilities. While the salt sure isn't helping matters (and questionably helping the fish?) I don't think that's your root cause (pun intended)
du dum, choosh!
Tim Wheatley said:It was kinda rude.
I clearly neglected to simulate the electric guitar.