The Transylvanian Chris Lukhaup is well-known for his brillant photos of all animals aquatic, and for his expeditions to exotic countries in all the world, where he goes searching for shrimps, crayfishes, snails, mussels and clams, crabs and all kinds of fishes both in nature and in breeders' tanks. Besides wild forms, Chris appreciates high-bred fish and invertebrates, and many breeders swear by his work. He has co-authored many books and bookazines, and also works as scientific author and co-author, mainly in the field of describing hitherto unknown invertebrate species. The scientific community profits greatly from his excellent photos, too.

Oliver Knott is a world-renowned aquascaper, aquarium designer and author with international connections. He travels the world holding presentations and workshops, and creates aquarium layouts and show aquaria for zoos, trade shows, business rooms and private homes. He's a trained retail dealer in the zoo trade, with focus on aquarium keeping. He can look back on decades of practical experience, and has seen it all. Olli's a great observer and knows a lot about the requirements of fishes and invertebrates in the aquarium hobby.