Little Talk : Liquid Trees

Scientists are indeed a creative lot. They may claim to have created liquid trees but fish enthusiasts in tropical countries may view their trees as just another dirty aquarium populated by algae. In pond or lakes polluted by fertilizers or detergents, eutrophication often sets in. The ponds and lakes then turn green as algae took over and fish may die due to a lack of oxygen. Eutrophication occurs in little aquariums too.