Some fish exhibit downright unbelievable resistance to the unfavourable environmental conditions. Sometimes it seems impossible that any aquatic organism would be able to survive in a given water reservoir.
Aquarium titbits - Michał Pręgowski;
Beauty in a micro scale - Michał Pręgowski;
South-American and African dwarf cichlids are regarded to be moderately demanding and very beautiful aquarium inhabitants. Besides their beauty the tiny size is their undoubted advantage – thanks to that they can be kept in any, event the smallest, apartment. (...) Dwarf cichlids, similarly as their bigger cousins belong to the Cichlidae family. (...) Significant majority of species, including ram (Mikrogeophagus ramirezi) and cockatoo dwarf cichlid (Apistogramma cacatuoides), come from South America.
Extremely charming representative of small cyprinids – Celestichthys margaritatus, formerly known as Microrasbora sp. Galaxy - Radosław Bednarczuk;
This fish quickly caused a sensation in a freshwater aquarium hobby. It is small and has very interesting patterns on its body.
Nematodes found in aquarium fish - prof. dr hab. Jerzy Antychowicz;
In case of tropical fish, nematodes are most commonly found in the digestive track but they may sometimes be observed in other internal organs as well.
Denison barb (Puntius denisonii) – is it the most wonderful of barbs? - dr Hubert Zientek;
This colourful and remarkable fish fascinates with its beauty and docile temperament. It is not commonly kept in aquaria but for the last few years its popularity has grown significantly.
A loner or a group? Problems with choosing number of lizards to be kept in a terrarium. - Alicja Papiór, Szymon Najdora;
When you read books, magazines or on-line resources concerning terrarium for lizards you will find hints on matching the number of animals to the tank size. Usually keeping a pair or harem is advised.
The mantis – beautiful beast - Magdalena Ryba;
The female devours the male during copulation – that’s a widely known fact concerning mantises. Is it true though? Partially – yes. In order to fully understand this charming insect you have to get to know its life better.
Short-fingered geckos – tiny mircale - Alicja Papiór, Szymon Najdora;
We will discus two species of short-fingered geckos here – Stenodactylus petrii and a bit larger Stenodactylus stenodactylus.
Lake Malawi biotopes. Part II. Cichlids inhabiting waters with sandy substrate - Mateusz Topolanek;
In my previous article I did my best to describe how cichlids from mbuna group living in rocky substrate parts of the Lake Malawi have adapted to their environment. These fish display strong territorialism, feed mainly on algae and have contrast-rich coloration – the latter aspect concerns both females and males. This time I would like to focus on more simply coloured fish that nevertheless have been equipped by Mother Nature with much more interesting scope of behavioural patterns. I will discuss fish that are found in deeper layers of the lake’s waters, that is directly above its sandy substrate. (...) Females from Lethrinops genus, a typical representative of „sand-dwelling” cichlids are a good example. Females are practically invisible against the grey, “building” sand when the aquarium is plunged into darkness after turning the aquarium lights off.
Few words on aggression in fish - Zbigniew Strzelecki;
Aquarium hobbyists must face the problem of choosing tankmates to the multi-species tank quite often.
Interview with Stendker brothers – the owners of the biggest discus farm in Europe - Maciej Dziedzic;
Some time ago I had an unquestionable pleasure to visit one of the most famous discus farms in Europe. The farm belongs to Jörg Stendker.
"J" Snake Skin - Andrzej Sieniawski;
The group of fish I will discuss here is known as snakeskin discus. Polish aquarium hobbyists either use Polish translation of the name or its English counterpart.
Lesser spiny eel (Macrognathus aculeatus) in aquarium - dr Hubert Zientek;
Lesser spiny eel belongs to Mastacembelidae family and Macrognathus genus. These fish are not related to freshwater eels from Anguilla genus whatsoever.