An aquarium is a miniature living ecosystem, and water is its foundation. Watching fish glide through the tank is wonderfully relaxing, but behind that beauty lies the dedicated work of a responsible owner. One of the most important maintenance tasks is regular water changes. At first glance it may seem tedious, but a few simple rules turn it into a quick and satisfying routine.
Aulonokara nyasa is sometimes called the queen of nyasa. There is a reason for this. Namely, the magnificent coloration of males of this species, which becomes even more vivid and inimitable during spawning.
The Hoplo Catfish, known scientifically as Hoplosternum thoracatum (Valenciennes, 1840), is one of the most fascinating armoured catfish in the hobby. A member of the family Callichthyidae, it stands out not only for its robust, plated body but also for a remarkable physiological trait: the ability to breathe atmospheric air through a specialised intestinal respiratory organ. In my years of fishkeeping experience, this species has consistently proven to be both rewarding and surprisingly engaging to observe.
Cichlid concord is remarkable in many ways. Both its body shape and way of life and peculiarities of spawning make this species a very interesting object for observation. Concorde has the Latin name Nimbochromis linni, but previously it was called Haplochromis linni and Cyrtosaga linni. Now these names should be considered synonyms, although obsolete.
Lamprologus buescheri Staeck, 1983 — commonly known as the chocolate-blue lamprologus — is a stunning cichlid (family Cichlidae) endemic to Lake Tanganyika in East Africa. In the wild, this species inhabits the southern and southwestern shores of the lake, favouring rocky substrates, stone shelves and crevices at depths ranging from 5 to 25 metres. Understanding its natural biotope is the key to successful aquarium keeping.
An orchid in an aquarium sounds like an idea straight out of science fiction. At first glance, it seems impossible — orchids are delicate terrestrial plants, while aquariums are an entirely aquatic world. Yet this seemingly absurd combination is not only possible but can result in a truly spectacular display.
Chilodus (Chilodus punctatus) stands as one of the most unusual and understudied fish in the characin family. This elegant species from the Amazon basin has captured the hearts of experienced aquarists with its unique behavior and graceful appearance. From my experience keeping rare characins, Chilodus requires a specialized approach, but the results are truly rewarding.
The Oscar fish (Astronotus ocellatus) is one of the most impressive large aquarium fish that has earned popularity among experienced aquarists worldwide. This magnificent cichlid is difficult to recommend for standard home aquariums due to its size, but it’s perfect for spacious office tanks or large aquariums in public spaces.
The betta fish (Betta splendens), also known as the Siamese fighting fish, is one of the most iconic and recognizable freshwater aquarium fish in the world. With its jewel-like colors and flowing finnage, this remarkable labyrinth fish captivates beginners and experienced hobbyists alike. In my years of keeping bettas, I can say without hesitation that no other fish matches its combination of beauty, personality, and relative ease of care.