thanks. I can also make a picture from the place / tank.
The place, tank has the bulk 100 cm. In it are 3.5 (or more than
3.0, so many calles from the frogs ) Bombina orientalis,
1.1 Hyperolius puncticulatus and 1.1 Leptopelis vermiculatus and a
1.0 Leptopelis bocagii man. I hear the whole day when I'am in the room a concert.