Or have you noticed how the walls of a fish tank sometimes turn green and slimy? These are all examples of algae—but there ... Sargassum floats near the water’s surface, while kelp is anchored to ...

Not everyone is a fan of snails, but there’s no denying the benefits they bring to a freshwater aquarium. Aquatic snails are ...

Green algae can settle on the floor and walls of your pool, making them slippery and potentially dangerous, so be cautious if ...