At 26.11.19 I started a sort of laboratory journal to note observations and experiments.
experiment:
I filled some frozen mosquito larvae in a glass bulb and lowered it upright into the fish tank.
![](https://agardenforafish.margitbusch.de/wp-content/uploads/2020/05/placeholder12cm.jpg)
The experiments with mosquito larvae and glass flasks were repeated until December 1, 2019. No fish entered the upright flask on the third day, but the fish got hectic – I think they smelled the food – and attacked the flask. When the glass bottle was in a horizontal position, they still swam in, wherby the colorless mutants seem to be more venturesome than their black and gold striped comrades.
![](https://agardenforafish.margitbusch.de/wp-content/uploads/2020/05/bulbP1090797b-519x1024.jpg)
![](https://agardenforafish.margitbusch.de/wp-content/uploads/2020/05/placeholder10cm.jpg)
It took about 25 min until the first fish entered. It was oszilla. After eating some of the larvae she got super exited. It seemed that she couldn’t find the exit. I tipped the bottle, she escaped, the other fish entered. A flurry of exitement.