Media for sump?

[lippydippy]

wanted to know what type of media i wanted to use for a 29 gallon sump? any suggestion? tank will have cherry shrimp and some various plants
thanks

 

[Mgamer20o0]

bio balls or bio type media..... sponges and i like floss but not sure how well that would work in a sump.....

with a shrimp tank you really only need a sponge filter.