Items included with the tank. Sump fit is treated as auto-pass when building with a package tank.
The full sheet — every number we check a build against.
- L × W × H
- 39"×20"×22"
- Stand interior width
- 37.4"
- Net (display) volume
- 66 gal (250 L)
- Gross volume
- 81 gal (305 L)
- Thickness
- 12 mm
- Drilled
- Yes
- Sump compatible
- Yes
Volume drives skimmer rating, return-pump turnover, and light footprint. Picking this tank sets a target of:
We'll check every part you add against these targets.
In the same class
Frequently asked
What are the key specs of the Aqua Medic Armatus 300?
Net volume: 66 gal (250 L). Dimensions: 39"×20"×22". Glass: 12 mm. Drilled: Yes.
How much does the Aqua Medic Armatus 300 cost?
The Aqua Medic Armatus 300 starts around $1,381, though prices vary by retailer — see current offers on this page.
What equipment do I need for the Aqua Medic Armatus 300?
Based on its volume and footprint, the Aqua Medic Armatus 300 calls for a return pump rated ≈528 gph, a skimmer rated for 99 gal, lighting that covers a 39.4" footprint. Add it to a build on ReefPicker to see every matching part checked against it.