Looking to trade for smaller skimmer.

Hey everyone,  everyone,  so the other day I bought a package deal off of ksl and in this deal was a reef octopus octx-160 protein skimmer with everything it needs plus the 8" table.  This is a very nice  slimmer but its pretty big for what I need.  I only  have a IM 20 gal nuvo drop off tank and a 5.5 gal tank that unturned into a nano tank my self.  Unless there is a way for me to run this slimmer externally then I need to sell this one or trade for one  that will fit to my needs a little better. .  I also have other supplies as well of I need to asd more on my end..  Can send pics upon request.