I'm located in Davie, FL. Our well water has a ridiculously high KH (14-15 drops to change colors in an API KH test kit). My frustrations on trying to have a planted aquarium are so high that I'm almost giving up on the hobby. Rare plants are able to survive, such as anubias and so far java ferns, but still, struggle with what seems to be potassium deficiency. I have to dump almost a whole bottle of potassium supplements in addition to ferts to have the leaves look somewhat presentable.
Anyone have suggestions on plants to grow or what to do with the water (least expensive solution)? should I just give up on plants and get hard water fish?