Red algae (Rhodophyta) belong to a group of aquatic plants usually classified in the modern systematic systems as phylum. (...) In aquarium literature they are usually referred to as “brush algae”. Relatively rarely the authors try to classify them better. In order not to go into a further discussion, let’s assume that the exact algae we will be referring to in this article belong to Chantransia genus and the names: Audouinella and Pseudochantransia are the genus’s synonymic names.
South-American cichlids – inexhaustible richness of forms and shapes - Radosław Bednarczuk;
(...) Three types of water are found in the Amazon river drainage basin: the so-called blackwater, whitewater and clearwater. First type of water is found in, among others, Rio Negro, Rio Cururu, Rio Arapiuns, Rio Tefé and their tributaries. (...) Cichlids living in Amazon waters can be easily divided into groups with reference to their: size, habitat (blackwater, whitewater, clearwater) and taxonomy (Geophagus, Apistogramma, Crenicichla etc.). Some people divide them to such groups as: docile, averagely aggressive (discus fish, angelfish and some eartheaters) and temperamental or simply aggressive fish (Crenicichla, Heros, Cichla).
Aquarium titbits - Michał Pręgowski
Pretended algae-eaters – Many aquarium hobbyists have already realised that the Polish name denoting “algae-eater” not necessarily describes nutritious preferences of some species this name is given to.; Malawi scale thieves – Some fish feed on plankton, some other on algae and yet some other hunt their kindred.; Aloud and backwards – Knifefish characterised by their attractive appearance (family Notopteridae) are often found in pet shop tanks.; Mouth-brooding catfish - the researchers were truly amazed by the fact that mouth-brooding pairs can also belong to the... one of the catfish species.
There are different types of tank decoration - Michał Pręgowski;
Planning the aquarium decoration reminds of the architect’s work. (...) Depending on the fish you want to keep in the tank you may add attractive roots or rocky constructions to your decoration.
Macrobrachium assamense - krewetka godna uwagi - Jacqueline Sawicka, Paweł Szewczak;
Krewetki tzw. karłowate (dwarf shrimps) najszybciej zagościły w polskich akwariach. Również krewetki filtrujące stają się coraz bardziej popularne. Stosunkowo mało lubiane i rzadziej chowane są krewetki tzw. wielkoramienne, do których zaliczamy większość gatunków z rodzaju Macrobrachium.;
Raudales de Atures. Our fishes’ homeland - Oliver Lucanus;
(...) Raudales de Atures is a homeland for the widely known blue phantom pleco (L128), Leporacanthicus galaxias (L240), Leporacanthicus triactis (L91), Lithoxancistrus anthrax (L235) and many other popular L-numbers. In some places the river waters flow slowly and form huge sandy shoals, in which unusual colour variation of the river stingray Potamotrygon motoro lives. Large characids are found there as well and they are subject to the export in this region.
Iodotropheus sprengae – brave „rusty” fish - Wojciech Sierakowski;
(...) Iodotropheus sprengerae is a mbuna cichlid that is found in a relatively narrow area of the Lake Malawi – the vicinity of Boadzulu island, Makokola reef and small islands Chinyankwazi and Chinyamwezi in the southern part of the lake.
Kingsnakes, colourful snakes confused with coral snakes - Witold Borkowski;
(...) We are talking here about representatives of Lampropeltis genus known as kingsnakes. Their name may refer to the fact that they will take both venomous and non-venomous snakes as a food source.
Study of the tarantula and scorpion species - Sebastian Żmudzki;
(...) The terrarium hobbyists’ interest in such species as: Brachypelma smithi, Brachypelma boehmei, Brachypelma auratum or Brachypelma auratum is predominantly due to their unique beauty and docile behaviour.
The private life of fish. Fish biology in a nutshell. Part III. Secrets of the fish cuisine - Marcin Graczyk;
(...) To cut the story short, fish can be divided to typical herbivores, predators and omnivores. (...) One of the most interesting fish are these that feed on other fishes’ scales, fry (paedophages that suck the fry directly out of the mouth-breeding parent’s mouth) or fins.
My own 8 thousand litres of the sea... - Daniel Knop;
Eight thousand litres of marine water in an apartment – a dream or a fantasy? (...) The most serious problems concerning reef tank of this size are connected with biological equilibrium between all organisms that is hard to achieve.
Daniel Knop and J. Ole Petersen in Poland!
Filtration 101 – some filtration theory. Part II. Zeolite - dr inż. Aleksandra Kwaśniak;
(...) We have known an amazing mineral for a few decades already – its name is zeolite. (...) Next to the natural zeolites there are synthetic ones as well. They are known for their strictly defined traits and are being used in different branches of industry. (...) Natural zeolites are used in absorbing ammonium ions (NH4+), heavy metals and radioactive elements from different types of sewers.
G group - RED TURQUOISE DISCUS - Andrzej Sieniawski;
(...) Aquarium hobbyists have regularly made breeding attempts to produce a red discus.
Breeding characids. Part I - dr Hubert Zientek;
(...) Species of characids are not too frequently found in decorative multi-species tanks as it is possible they could attack some fish with elongated fins. (...) Species that lay eggs in the substrate, diapause – seasonal fish.
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