Hey everyone,
I’m currently in the planning phase of a new reef build and wanted to get some opinions from the community on what media you would recommend running in two media reactors.
The tank is a custom 240L × 90W × 50H cm display with a 180L × 60W × 50H sump, so it’s going to be a fairly large system. I’m trying to plan everything out ahead of time so plumbing, manifolds, and equipment placement are all designed properly from the start.
Some of the main equipment planned so far:
Lighting: 3 × Radion XR30 + 4 × AI Blade bars
Filtration: Reef Octopus 250-S skimmer
Flow: Dual Ecotech COR20 return pumps
Control: Apex Pro system with Trident, salinity probe, ATO, etc.
UV: Lifegard Pro-Max 120W
Cooling: 1 HP chiller
Refugium: Neptune GRO light
Calcium reactor: CalcFeeder AC3
I plan to run two media reactors off the manifold.
Right now my thinking is:
Reactor #1 – Activated carbon (running continuously)
For the second reactor, I’m trying to explore options other than the typical GFO or biopellet route. Since the system will also have a refugium and a good amount of rock, I’d prefer something that supports stability rather than aggressively stripping nutrients.
Some things I’ve been looking into:
Since the tank is still in the planning stage, I’m trying to design things the right way before everything gets built.
Appreciate any ideas or experiences you’re willing to share.
I’m currently in the planning phase of a new reef build and wanted to get some opinions from the community on what media you would recommend running in two media reactors.
The tank is a custom 240L × 90W × 50H cm display with a 180L × 60W × 50H sump, so it’s going to be a fairly large system. I’m trying to plan everything out ahead of time so plumbing, manifolds, and equipment placement are all designed properly from the start.
Some of the main equipment planned so far:
Lighting: 3 × Radion XR30 + 4 × AI Blade bars
Filtration: Reef Octopus 250-S skimmer
Flow: Dual Ecotech COR20 return pumps
Control: Apex Pro system with Trident, salinity probe, ATO, etc.
UV: Lifegard Pro-Max 120W
Cooling: 1 HP chiller
Refugium: Neptune GRO light
Calcium reactor: CalcFeeder AC3
I plan to run two media reactors off the manifold.
Right now my thinking is:
Reactor #1 – Activated carbon (running continuously)
For the second reactor, I’m trying to explore options other than the typical GFO or biopellet route. Since the system will also have a refugium and a good amount of rock, I’d prefer something that supports stability rather than aggressively stripping nutrients.
Some things I’ve been looking into:
- Bio media options
- Trace element or mineral media
- Other filtration media people have had success with
Since the tank is still in the planning stage, I’m trying to design things the right way before everything gets built.
Appreciate any ideas or experiences you’re willing to share.

