From Practical Fishkeeping:
Three new Amphilophus cichlids named
American scientists have described three new species belonging to the Midas cichlid (Amphilophus citrinellum) species complex from Lake Apoyo in southwestern Nicaragua.
Publishing the descriptions in the latest issue of the Proceedings of the Biological Society of Washington, Jay Stauffer, Jeffrey McCrary and Kristin Black have named the three new species Amphilophus astorquii, A. chancho, and A. flaveolus.
Convict cichlids benefit from close proximity to another species of cichlid fish: here.
Also from Practical Fishkeeping:
Comet the goldfish could arguably be called the world’s most intelligent fish after its owner, Dr. Dean Pomerleau, taught him to play football, basketball, limbo, play fetch, slalom around a series of poles and push a rugby ball over a set of posts.