Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A must-have in any serious aquarist book collection!

This is an absolute must in an aquarist book collection. Although, as the author states is not a coffe table book (it has no pictures), is filled with very usefull information and tips. All chapters are based on the author's long experience, which makes the information evermore believable and worth applying. Beyond the basic information, which is very thourough and complete, there are many more in depth discussions, suggestions and experiences, regarding corals and their propagation. Even if the aquarist is not planning in the near future to propagate his own corals (for now!), this book gives you a super solid foundation for successfull reef keeping. In addition, the book is well written and is very pleasant to read. The straight forward style makes for very easy comprehension. By far, the best marine aquarist book I own.