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So far Udo has created 250 blog entries.

September 2022

Freshwater shrimp


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 [...]

Freshwater shrimp2022-08-30T15:49:46+01:00

August 2022

Night creatures


Frogs, newts, dragonflies, swallows drinking water... the natural life next to the biological pool is widely known. But it's not the whole range, because when the sun disappears, the team changes. The night creatures come. The beginning of the change can be noticed through a detail. There are no longer dragonflies in flight, with [...]

Night creatures2022-07-31T09:56:06+01:00

July 2022



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 [...]




The EU-funded PONDERFUL project is investigating how ponds (natural and artificial) can be used as nature-based solution for climate change. The project is evaluating the interaction and feedback between biodiversity, ecosystem services and climate. One knows that low nutrient ponds like natural swimming pools are harvesting CO2 due to their high amount of water [...]


Holiday with swimming pond


The calendar summer has already arrived, summer with higher temperatures that encourage for swimming will also come, sooner or later. Time to think about holiday! Those who go to the coast are dreaming of refreshing dips in the ocean waves. Those who go to the interior looking for more naturalized bathing, know beaches on [...]

Holiday with swimming pond2022-06-30T10:57:03+01:00

June 2022



The "classic" biological pool is reminiscent of a natural lake. Here, the plant area and the bathing area form a single water table. There are many other variants. One of them we can call biopool, since it is much more resembling a conventional swimming pool. In this configuration, the bathing area can be much [...]




A skimmer is a device to clean impurities from the water surface, installed to reduce maintenance. A pump is causing a flow to an opening with a basket behind it, catching and filtering what comes with the water. Thus, impurities end up in the basket and not at the bottom of the pool. Skimmers are [...]


May 2022

Common essentials


What is and what is not a biological pool? - This question now has an answer that is valid all over the world. Nacional associations of designers and builders of biological pools from several countries on five continents have launched the "common essentials", about what is a pool with biological treatment. The general assembly [...]

Common essentials2022-05-01T11:56:47+01:00

Promoting the aquatic world


Since always it is a pleasure for the designers at Bio Piscinas, Lda to reveal the mysteries and beauty of aquatic life. The 2022 Ethnobotanical Days (Jornadas Etobotânicas)  in Amendoeira da Serra, Mértola, organized by Montícola, association for sustainable development and nature conservation, was one of the last opportunities. The workshop on aquatic plants and [...]

Promoting the aquatic world2022-05-01T11:53:48+01:00

April 2022

Versatil robot


This is the only robot designed from start directly for use in biological pools. It's not just a robot, it's much more. Due to the modular composition this device is two in one. It can be used as a hand-operated vacuum cleaner with a telescopic sweeper or vacuum the bottom of the bathing area [...]

Versatil robot2022-03-28T11:52:16+01:00
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