i wrote this book to solve a problem.not specifically any particular algae problem,what i wanted to solve was how much time i was spending teaching aquarists how to solve their own individual custom-tailored,genetically-modified,unstoppable,maddening,keep-me-up-at-night,help me,do something,do something,please,please,please put me out of my misery now!algae problem that was ruining their aquarium and disturbing the peace in their neighborhood.i figured that if i simply put what i knew into a short book i might save myself a fair amount of time:algae problem?read my book!