Almond leaves are a wonderful thing for aquariums as they bring so many different benefits. One thing I have wondered about at times is why do certain almond leaves cause different effects on the water. There are some brands of almond leaves I am able to add to my tanks that will stain the water but water cloudiness never occurs. Then there are other brands of almond leaves that within a day of adding them to a tank they will begin to cause cloudiness. Is there something I am missing when buying almond leaves?