Originally Posted by jakevwapp84
do the grade of the leaves affect the benefits to the water
Not that I can tell. I think it's all based on thickness and whole-ness of leaves. I bought mine from Fleabay, grade D. I paid more to ship them then I did on the leaves themselves, and the ones I got were huge, full leaves. A few had a couple of holes in them, or weren't perfectly flat, but, still quite effective. Each one takes about 3 weeks to break down in my aquariums, and the first week or two, my water is so brown you can barely see through it.