protein skimmer for a 20 g tank?

[saltwateronly]

any reliable skmmers out there ive read some good and bad reviews on amazon and a couple other sites?

 

[DSP]

Hob or in sump?

 

[saltwateronly]

im guessing hob. whats the difference?

 

[Reefing Madness]

One goes in your sump, the other hangs outside on your tank.
Eshopps Nano Protein Skimmer
Tunze Comline DOC Protein Skimmer 9004
Innovative Marine AuqaGadget Nuvo SkimMate Nano Protein Skimmer, Pre-Order >

 

[bpeck]

Remora makes good small skimmers. I have the Aqua C which is a HOB but its hung on the side of my sump.