If you struggle to control the algae in your tank, the appealingly named lawnmower ... scientific name ctenochaetus strigosus. A striking red fish with a black dorsal stripe, these fun characters ...

Or have you noticed how the walls of a fish tank sometimes turn green and slimy? These are all examples of algae—but there is a lot more to the algae story! On the right side of the cover, it is ...