I purchased this and used once thus far pretty sparingly but I got it because I wanted to introduce Humic and Fulvic acid and with a smaller tank, didn't like the look of a giant indian almond leaf. I have cut the almond leaves into smaller pieces and while this product does stain the water, I just put it in at night after lights out and the stain doesn't last that long. The shrimp seem to enjoy it even after only one use in my Caradina tank
