Tanganyika aquarium sump

This is the second part of my sump:
- Red Dragon speedy 8.000 l/h
- Alfagrog with white filter wool
- Oyster shells
- Grow out compartment with Synodontis irsacae
First part of the sump is one big compartment for growing out fry. At the moment occupied by fry of Altolamprologus compressiceps Gold Head.