Vienna_11.10.20_ 04:38 pm The fish seem to have their own typical movement patterns. These patterns can also depend on the time of day (see movement patterns of forc and 1point below). As you can see in the picture above, there is a separate but accessible compartment in the aquarium. Only two fish entered the separated … Continue reading
Category: wellbeing
meaningful signals
I used a lamellophone, pressed it on the glass of the aquarium and played. The fish responded, but their response was equivocal. I felt that a demonstration that fish could learn to categorize stimuli as complex as music, according to a criterion as unnatural as musical genre, not only would show that they extract meaningful … Continue reading
how to catch
I fed mosquito larvae from a sieve and learned that the fish easily get into the sieve. Next time I know how to catch them if I want to move them to another tank.
sessile filamentous algae
Vienna_14.07.20_12:47 pm
food
2. Juni 2020, 01:06 pm [john dow] In the labs fish are fed with different food. Sometimes it is commercial fish food, sometimes they bred food for the fish. I will investigate on that. I remember a funny detail. In one source it was told that the zebra fish in the fish facility in Tübingen … 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
no lasting success
According to the manufacturer’s recommendation, the preparation* should be applied over the course of 5 consecutive days and then, as a preventive measure, once a week. At first the treatment with the preparation was quite successful, but then the cyanobacteria developed splendidly again. I decided that the only way to solve the problem was to … Continue reading
blue exit
Blue Exit on my desk_10.05.20 I don’t know exactly when the cyanobacteria infestation began. In the laboratory journal I mentioned them for the first time on April 3, 2020. They became a serious nuisance and I spent a lot of time curbing their proliferation. In an aquarium shop, the above preparation was recommended to me … 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.
umwelt
At the beginning the aquarium was situated on the floor on a mobile platform. That turned out to be impractical and I built rack to raise it. But I could always see it from my desk, so that I can watch it from there at any time. Subjekte leben in einer subjektiven Wirklichkeit. Diese stellt … Continue reading
aqua test & aquatic fern
24.01.20, 07:29 am At the time when pale died, foam appeared on the surface of the water. I thought this was a bad sign and used a test kit for hobbyists to check the water parameters. The nitrate level was slightly increased, but not in a range that should pose a problem. Zebra fish are … Continue reading