Innovative Marine Nuvo Fusion 40

40-gallon all-in-one cube with ultra-clear low-iron glass and a rear sump housing a 200-micron filter sock and CustomCaddy media basket. The included 538 GPH DC return pump with dual directional nozzles delivers strong, even flow. A natural step up from the Fusion 20/30L for reefers wanting more volume without going external-overflow.