26. Mai 2020_08:18 am The fish have not [yet?] learned about things which are translucent but solid. The medium they live in is translucent but never solid in their natural environment. They try to reach the food flakes by pelting the plexi glass. It seems that they find the passages [see image ‘alternative habitation‘] only … Continue reading
Category: umwelt
alternative habitation
Mr. Fischer [link follows] gave me the idea for a seperate chamber in the aquarium [without gravel on the ground] to fed the fish. This has the advantage that sinking food morsels do not disappear into the gravel and add to the nutrient level; besides it makes cleaning easier. It also serves as an offer … Continue reading
bad luck
2point is not recovering. I fear that he will be the next fish at the cemetery. However, he still has an appetite. Yesterday I was in a pet shop and asked for advice. According to the owner, it is not the cyanobacteria that caused the poisoning. Just something like bad luck. He also did not … Continue reading
relocation
Vienna_20.05.20_04:40 pm The day before I started to transfer the fish into another tank. The bowl served as an interstation. It is filled with a mixture of water from the initial aquarium and the new one to minimize the shock of altered water conditions. If you look closely, you will see that one of the … Continue reading
housing situation
Vienna:05.05.2020_aquariums in my living room “These findings show how commonly used housing situations may affect the wellbeing of laboratory zebrafish.” Keck VA, Edgerton DS, Hajizadeh S, et al. Effects of Habitat Complexity on Pair-Housed Zebrafish. J Am Assoc Lab Anim Sci. 2015;54(4):378‐383.
meaning
I wanted to train the fish to swim through a tube and started with a short piece 60 mm long, 35 mm in diameter. They showed no particular interest. Only when I charged it with mosquito larvae they passed through. Each animal faces a small number of objects within its living environment with which it … Continue reading
5 fish
Vienna_18.01.19 I pur-chased 5 fish on a Friday, 18.01.19. Earlier I have furnished a 54 l fish tank* with gravels and aquatic plants. Two weeks later the fish moved in. *an all-in-all aquarium with filter system, heating and illumination. The heating broke quickly. I had to get a new one.