A pre-requirement for successful design work on biological pools is always  a water analysis as detailed as possible. Everyone who deals with water analysis knows this: a water analysis comes from the laboratory and now the study begins. No successful project can do without the analysis of filling water and its correct interpretation. The [...]

Planaria is an animal rarely visible in biological pools, even if there were many there. But it is a species widely used in scientific biology laboratories. This species can be cut into pieces, and each piece can regenerate into a complete organism! What sounds brutal has greatly helped scientists to better understand the biology [...]

The hygienic purity of water is essential for the success of biological pools. In some biological swimming pools for tourist use, it is confirmed monthly by regular analyses. Bio Piscinas, Lda. recommends that all tourist units with biological pool carry out this self-control of their own volition, despite the absence of a legal obligation [...]

Few know that there are freshwater shrimp in Portugal. Inhabits rivers and streams. There are records in the center of the country, in the limestone areas  north of Lisbon and it is relatively common in the streams of the Algarve. Atyaephyra desmarestii, as scientists call it, is naturally distributed in the western Mediterranean. The [...]

At the biological pool, on a plant or rock near the water, it is not uncommon to find something similar as shown in the photo. It is an exuvia or molt of an aquatic insect. It's not a dead animal, it's just the larval skin of a dragonfly. These larvae, when they finish their [...]