feeding brine shrimp

‎Vienna_31.10.2020 In addition to the fact that brine shrimp [Artemia] are a widely used food item for small or larval fish and crustaceans (see brine shrimp), Artemia provides a unique example of how to develop a strategy in dealing with critical conditions needed for survival. The Artemia model depicts adaptation as a complex response to Continue reading


Vienna_16.10.20 [Dusky Nerite / Neritina pulligera???] At 7.10.20 I went to the pet shop to have a chat. I came back with three snails [one red-rimmed melania (Melanoides tuberculata) and two Dusky Nerits (Neritina pulligera), four little Yamato shrimps (Caridina multidentata), a plant called spade-leaf sword (Echinodorus cordifolius), and a spherical alga called Marimo moss Continue reading

hidden in the Java fern

‎11.07.20_‏‎11:42 am I couldn’t see 2point this morning. I searched with a bamboo stick between the plants and scanned the entire aquarium. No 2point. A miracle and a bad feeling, I don’t want to have a corpse in the tank. Found him around noon, dead, hidden in the Java fern [Microsorum pteropus ‘Trident’].

laboratory environment

Number of laboratories in the top 25 productive countries (according to their number of publications). Illustration produced from the data of Kinth et al., Mapping of zebrafish research: a global outlook, 2013 Zebrafish based research is performed at estimated >3250 institutes that spread numerous countries of the world, but there is a focus on Europe, Continue reading

natural environment

film still from: Wild zebrafish in India Jutfelt Lab: Wild zebrafish filmed in their natural habitat in northern West Bengal in India. The natural range of the zebrafish is centred around the Ganges and Brahmaputra river basins in north-eastern India, Bangladesh and Nepal.They have typically been described as inhabiting slow-moving or standing water bodies, the Continue reading

anatomy & diagnosis

[1] gills [2] swim bladder [3] Weberian ossicles [4] ears [5] heart [6] brain [7] liver [8] stomach and intestine [9] kidney [10] spleen [11] gall bladder img from:https://www.anglingtimes.co.uk/advice/science/articles/inside-a-fish I read about fish diseases and found something called “Fish Hole In The Head Disease”or hexamitosis, respectively hexamitiasis. Hexamitiasis is a parasitic disease that can affect Continue reading

unpredictable interactions

view through the microscope of detritus on the ground of the fish tank (100 x) In scientific fish facilities living beings other than the model organism are usually not welcome (unless they are part of an experiment or part of the bacterial population in the filter system). They could trigger unpredictable interactions that make it Continue reading

personal preferences

The observed preferences are not stable and only valid for a period of a few days. ▲ 1point prefarably loiters in the separated ‘food chamber’ mainly close to the bottom. He has this habit since about one week. ▲ For a couple of days bent also had a preference for the right side of the Continue reading