I don't know if there is a direct correlation, but I have little or no FA, but I have plenty of sago pondweed and horned pondweed. It definitely doesn't harm the invertebrates because I have trillions of those. I also seem to have good reproduction of all fish species.

Honestly, I have no clue as to whether my FA is affected by the salinity.

Holding a redear sunfish is like running with scissors.