Just move the outside part, the inside part will clean the algae off the glass. And you don't need to wet your hands and disturb the fish in the tank. When the two parts get close, they will reattach.
[ Ссылка ]
![](https://s2.save4k.ru/pic/OII5hOO2Bk0/maxresdefault.jpg)
Just move the outside part, the inside part will clean the algae off the glass. And you don't need to wet your hands and disturb the fish in the tank. When the two parts get close, they will reattach.
[ Ссылка ]