which one do i need?

[hayden]

every thing on this page is something i can afford and i need a skimmer on my 29 i would prefer hob but i have a sump its just that the skimmer has to be lass than 15 inches tall if its in the sump due to poor planing by me.

http://www.aquatraders.com/index.asp?PageAction=VIEWCATS&Category=15

 

[Zoodiver]

I like the Prizm hang-on-back type skimmers for smaller tanks:

http://www.aquaticeco.com/index.cfm/fuseaction/product.detail/iid/7878/cid/1995

 

[Pufferpunk]

Prizms are junk. Just replaced it with a used Backpac.