Patrick
You are in Florida so there should be some Tropical Almond trees around you somewhere. We have them here and I am in Central Florida. Pick the dead brown ones off the ground. NO GREEN ONES. Check the leaves for mold, mildew or fungus first. They are used extensively by Asian betta breeders and Angelfish breeders around the world. If you don't want them loose on the bottom of the tank, crumble them up in a filter sock and put it in your filter. It will brown your water and lower your ph slowly. It also adds good stuff that makes the fish feel comfortable and promotes breeding. Carbon can be used afterward to removed some or all of the tea color after the desired ph is attained. Removing the tea color with not raise the ph again.