Fp. powelli is basically unknown in the hobby.  It was originally collected in in the western Niger delta area, Nigeria.

REFERENCES

Zee J.R.(van der) & Wildekamp R.H. 1995. (Fundulopanchax powelli).  Description of a new Fundulopanchax species (Cyprinodontiformes: Aplocheilidae) from the Niger delta, with a redefinition of the genus Fundulopanchax.  Journal of African Zoology 108 (5): p 419-424, figures, map.

Species
Fp. powelli
Zee & Wildekamp 1995