Have to decide today. I have the 20L and a Current USA Orbit 2x65watt w/ moonlights lighting, AC 500 (fuge) and a Aqua C Remora Skimmer ready to go but the Aqua Via 18G just became available. They're hard to come by and it's what I originally wanted. Although, I do hear bad things about their stock lighting...I can use the 20L at home (sump) and sell the lights but I can't decide and I have to - today. New office may/may not be available for another month. Would appreciate any and all feedback. Thanks, Bill