So I've got a medium bioload in my 140 currently, and I have a MSX/Octopus/Whatever 200 skimmer. To date, my results have been rather lukewarm. Apparently it is plenty skimmer, and I get some good skimmate, but I'd really like to improve the water quality in my tank and I'd rather err on the side of overskimming the tank. I'm looking at perhaps a ReefFlo Orca 200 or the like. What are some other options out there? The skimmer will be in-sump and will need a footprint at or less than the Orca (14.5"x17"). I'm looking to keep it under $1000 for the replacement. Any other options I should consider than the Orca with similar price/performance?