Red Sea REEFER MAX 300 G3
The REEFER MAX 300 G3 is a high-performance, reef-ready aquarium system designed for aquarists who want enhanced circulation, efficient plumbing, and a versatile mid-to-large size format for custom reef builds. Featuring the G3 fully redesigned flow system and hydrodynamically optimised piping, this system delivers up to 50% improved water circulation, promoting stable water conditions and supporting stronger coral health.
As part of the advanced G3 lineup, the REEFER MAX 300 offers premium adaptability — allowing you to choose your preferred lighting, return pumps, protein skimmers, dosers, and filtration media to suit your reef-keeping goals.
| Key Features | Specifications |
|---|---|
| Flow System | G3 fully redesigned flow system with hydrodynamically optimised piping |
| Water Circulation | Up to 50% improvement over previous models |
| Size Format | Mid-to-large capacity for custom reef builds |
| Customisation Options | Lighting, return pumps, protein skimmers, dosers, filtration media |
| Warranty | Up to 5 years |
FAQ
What makes the G3 flow system different from previous models?
The G3 flow system features a fully redesigned circulation layout with hydrodynamically optimised piping, resulting in up to 50% improved water movement and more stable water conditions for coral health.
Can I customise the lighting and filtration components in this system?
Yes, the REEFER MAX 300 G3 allows you to select your preferred lighting, return pumps, protein skimmers, dosers, and filtration media to match your specific reef-keeping goals.
Is the system suitable for large reef setups?
Yes, the REEFER MAX 300 G3 is designed for mid-to-large size aquariums and offers the flexibility needed for custom reef builds.


Steven Simpson –
The water flow is noticeably stronger and more even than my previous system. Corals have grown more vibrant and stable since switching to the REEFER MAX 300 G3. The modular setup lets me adjust lighting and filtration based on my reef’s needs. Easy to install and well-built.
Richard Black –
I love the improved circulation. My soft corals are thriving and the water movement feels more natural. The system is flexible — I’ve added a protein skimmer and doser without any issues. Great for a large reef tank.
Matt Kerr –
The flow performance is excellent and the setup is intuitive. I’ve used it for six months now and haven’t had any issues with water stability. The only minor point is that the initial setup took a bit of time to configure the piping.