|Beach almonds (Terminalia cattapa) overhanging Trinity Beach|
Beach almond leaves are used by aquarium owners in tanks holding soft water fish - discus for example - to soften the water, add tannins, and reduce fungal growth. They sell, sometimes labelled "Miracle Leaf" for about 50 cents a leaf. How much is the patch of sand at the right of this photo worth? They're of little use in my tanks, which are hard or neutral water, but I sometimes wonder if I should be collecting them and selling them on Ebay.