10G Sump CUC?

[BigEZ77]

What CUC would you recommend I put in my 10G rear sump (AIO tank) to keep it clean? It has a nano reactor, skimmer and two mesh bags in it.

Thanks,

 

[BigEZ77]

Disregard, LFS suggested Cerith snails so I picked some up.

 

[bmitchell138]

I've got a couple of Astrea and Margarita snails and a couple of hermits in my 10g sump.

 

[BigEZ77]

My bad, meant Astrea not Cerith