Hello everyone! So... We have this gigantic bamboo plant at work that always has tons of green algea. It doesn't matter how often we change the water or rinse off the rocks, it still comes back. My question is what can I do to help keep the algea away? Is there a plant product that can help? A customer of mine said to get some snails or ottos? Keep in mind there is no filtration, so I'm not sure they are such a good idea. The bamboo is in a 10 gal. (guestamate) clear, vase-like jar. and the plant itself is over 4 feet tall. Any suggestions?