Someone with a SRO 3000INT or SRO5000INT measurements please...

So the 3000 sounds like a better sized skimmer for my tank.

 

I agree. Hopefully the smaller footprint solves your space issues.

 

I have a 5000int in a 75 gal sump for my 180 gal FOWLR that houses 2 Triggers and a grouper, a bio pellet reactor and feed pretty heavy ( silversides, raw shrimp and clams) it's a good fit but unless you have a big load go with the 3000. If I could do it again I would get the External model and run it in the sump, it has a slightly smaller footprint

 

If you were to do it over would you get the 3000 or 5000 external?

 

5000