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


I bought new fish food the other day. It is not as colourful as the old one and I smell a little more herbaceous notes, a little more freshness. But I am even not sure if I could distinguish both in a blind test. I will try that later. First impression: the fish spit out Continue reading

laboratory journal

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. The experiments with mosquito larvae and glass flasks were repeated until December 1, 2019. No fish entered the upright flask on the Continue reading