Trigger Systems sumps are one of if not the most resepected name in reef keeping hobby. They are a brand that we stand behind almost exclusively due to their amazing customer service, elite engineering, and innovative features. Each and every sump is hand built right here in the USA in Texas. The unique colors such as Sapphire Blue, Emerald Green, Ruby Red and Aquamarine Triton aren't just for aesthetics. The color also helps curb unwanted algae growth by filtering light that would usually enter the sump creating excessive blooms. Each sumps also comes with an adjustable baffle to raise and lower water levels, probe holders, and noise reducing splash guards. Trigger has patents on a number of the features on their sumps because they have always been an innovator in the aquarium hobby. There is no rule when it comes to selecting a sump; it's just the biggest you can fit in the space you have to work with. Should you have any questions as to which sump is right for you, don't hesitate to contact us.