Day 8-Carrie

Why green?...hmm...it appears that the water in our aquatic chamber is greener than that of the other groups ecocolumns. I have to assume that the lack of soil in our decomposition chamber has much to do with this current situation, however, is the green a result of algae growth or diffusion of chlorophyl from the fern (is that even possible?) or a fungal growth? What factors should I be looking for?