Derrick and salty, I have both the ASM & Octopus. IMHO I had to do to many MOD's to the ASM G3 Recirc to make it a worthy skimmer, It works wonders now. I've done 2 quick and fool proof MOD's on the Octopus and can't believe how well it performs. Octopus skimmer's are higher quality built, better materials and have far better pumps. ASM IMO is built poorly and has a terd for a pump. They use the Sedra pumps which are just a fair pump at best. Octopus uses a Oceanrunner pump ( or one built & design by copying off of Oceanrunner to the T ). I'd go with an Octopus before the ASM, But that's JMHO.