Octopus XP3000 External
 

Anyone have experience with this skimmer? Do you have to drill your sump to install it? If so, I'll consider the internal one.

I have a Xp 5000 ext cone running on 510gals total and its pulling a full cup once a week of the darkest gunk you could imagine. I like!

SWC 250 1A
 

After doing more diligence, I opted to get the SWC 250 1A... This one has a kick-rear end Askoll 1500 pump. It pulls 2100 L/h air that beats the poo out of my current RS 250 pump that only pulls 1200 L/h. This will pull anything out of my water the moment it gets emitted from any of my fish! Die algae die! To get an equivalent rated Bubble King or Vertex skimmer, you'd have to poney up twice the cash.