Not good

Most of the descriptions are the same thing over and over again and very few actual have info on the exact species. Really not very helpful at al for saltwater aquariums and has a lot missing and then has a lot of irrelevant information about fish that you would never keep in an aquarium. APP might be ok fr 99 cents but is ridiculously over priced.

Baker5322 about Aquarium Handbook Complete, v1.51