Books like Nature Aquarium World
Takashi Amano
Nature Aquarium World is 156 pages, about 2 hours 52 minutes at 250 words a minute.
6 books to read next
How long each takes
Ecology of the Planted Aquarium 3.6 h 
Creating Black Americans 8.7 h 
The History of Graphic Design 8.8 h 
Classical Ballet Technique 7.3 h 
The Good Old Days--they Were Terrible! 3.8 h 
Anatomy of Muscle Building 2.9 h Bar height shows length. Estimated at 250 words a minute.