They do not advise much on fish, it is better to study them yourself and come for specific fish. As a beginner, 4-5 incompatible species were sold to me in one aquarium (12 fish per 40 liters). Some eventually died quickly, some I suspect are constantly stressed from incompatibility with other fish. I also took a hamster here, superficially the basic questions were answered and that's it. The guys don't really dive deep into the knowledge of their "product".