Hello guest! Are you an Apistogramma enthusiast? If so we invite you to join our community and see what it has to offer. Our site is specifically designed for you and it's a great place for Apisto enthusiasts to meet online. Once you join you'll be able to post messages, upload pictures of your fish and tanks and have a great time with other Apisto enthusiasts. Sign up today!
Even with its age as some mis-identified species, Cichlid Atlas 1 is a much superior book. Obviously I'm not biased, since I helped Dr. Römer translate parts of Cichlid Atlas 2 into English. CA 1 has most of the species commonly available in the hobby; has excellent chapters on breeding, sex ratios, & biotopes in the wild.
The English edition of CA2 was poorly edited; not proofread by a native English speaker (seemingly); has groupings that in my opinion do not work because of inadequate sampling points; & most of the "newly named" species are actually undescribed species discussed under other names in other books and articles.
Definitely buy CA 1. CA 2 ... well that's your choice.