breeding tank A structure for breeding Amano shrimp (Caridina multidentata). Source: Image on Wikimedia Commons License: public domain Author: Rchampagne A small group of females and males are kept in an aquarium. A 12 liter glass aquarium is suitable for…
QUESTION Humberto Carlos Andrade, Sao Paulo, SP ILLUSTRATES Juliana Caro Because they are mutants. In fact, the clover, which is common in Europe, North Africa and North and West Asia and the United States, has only one leaf, subdivided into…
How the colors are created The colors of the fish come about in three different ways: by chemical staining by physical coloring by direct pigment coloring, which is actually also a chemical coloring Chemical coloring The chemical coloring is mainly…
ILLUSTRATES Felipe Cachopa SUGGESTION Bruna Leme de Araújo, Mogi Mirim, SP 1. A oak island (“Oak Island”) is located in Nova Scotia, Canada, and has 570,000 m2 (about 60 soccer fields). In 1795 rumors began to circulate that, prompted by…
Data sheet strawberry dwarf rasbora German name: Strawberry dwarf rasbora Scientific name: Borara’s naevus Origin: Thailand Size: 1cm – 4cm Aquarium Length: Length from 60 cm width Contents: from 54 liters water values Temperature: 24°-28° C pH: 5 – 7.5…
– (Disclosure/Reproduction/Wikimedia Commons) Like so many other complex machines, it was the result of a long, slow evolution. Still during the Renaissance, in the 15th century, the Italian painter and inventor Leonardo da Vinci designed a rope-powered tricycle, like a…
The umbrella moss – Eleocharis is an elegant aquatic plant with fine stalks, which not only looks very beautiful, but can also offer small aquarium inhabitants hiding places. genus The umbrella moss belongs to the genus Eleocharis. kind This is…
(/) Reader Question – Gabriel Gustavo Sanches Martins, Sao Paulo-SP The first image that portrays the world as we know it today is by the German cartographer Martin Waldseemüller (1475-1522). Dividing the Earth between East and West, it was created…
Datasheet Koi Swordtail German name: Swordtail (Koi breeding form) Scientific name. Xiphophorus Helleri Trade name: Kohaku, Koi Swordtail Sanke, Koi Swordtail Tricolor Origin: Middle and South America Size: 5-10cm Aquarium Length: 100 cm Contents: From 100 liters water values Temperature:…
She was long in duration and quick in conquest. The Moors needed less than a decade to dominate the region – which would remain under their control for almost eight centuries. The invasion began in 711 and three years later…