Fluval Sea Flex Saltwater Aquarium Kit - 123 L (32.5 US gal) - Black Natural Food The most obvious differences are

The most obvious differences are the sizes

Other model available :

fine mesh makes it easy to collect debris of all sizes and the protective bottom strip prevents net damage during use

and invertebrates while helping to prevent stress

Males sing their melodious

Fluval Sea Flex Saltwater Aquarium Kit - 123 L (32.5 US gal) - Black Natural Food The most obvious differences areThe Fluval Sea Flex 32. 5 US Gal. (123 L) Saltwater Aquarium Kit makes an exciting addition to Fluval's bold curved aquarium series. It comes equipped with a mobile device operated Marine 3. 0 LED that offers total control over brilliant custom colors, multiple dynamic effects and a programmable 24 hour light timer. In addition, this all new Flex includes a built in filtration system with 2 independent multi stage chambers for maximum cleaning