UNS
UNS 40A Dual AIO (Cube)
Gear matched to this tank: lights by coral goal, skimmers and pumps checked against its rear chamber.
Best lights (by coral goal)
Kessil Kessil A160WE Tuna Blue
Medium
$259.00
- covers 15.74×16" display area
- LPS/mixed intensity meets your LPS goal
Nicrew Nicrew HyperReef 50 (Gen 2)
Medium
—
- covers 15.74×16" display area
- LPS/mixed intensity meets your LPS goal
Aqua Illumination AI Prime 16HD Reef
High
$264.99
- covers 15.74×16" display area
- SPS-capable intensity meets your LPS goal
Reef Breeders Reef Breeders Reef Nano LED
High
$169.99
- covers 15.74×16" display area
- SPS-capable intensity meets your LPS goal
Compare all lights ranked for the UNS 40A Dual AIO (Cube) →
Best protein skimmers (sized for medium bioload)
HOB
$189.99
- rated to 75g, covers your 25g medium-bioload target (tank + margin)
- hangs on back — no chamber-fit constraint
- built for much larger systems (75g) — likely oversized for a nano
HOB
$334.94
- rated to 105g, covers your 25g medium-bioload target (tank + margin)
- hangs on back — no chamber-fit constraint
- built for much larger systems (105g) — likely oversized for a nano
in-chamber
$99.99
- rated to 26g, covers your 25g medium-bioload target (tank + margin)
- rear-chamber dims unknown for this tank
in-chamber
$98.16
- rated to 30g, covers your 25g medium-bioload target (tank + margin)
- rear-chamber dims unknown for this tank
Compare all skimmers ranked for the UNS 40A Dual AIO (Cube) →
Best return pumps (for ~5× display turnover)
AC
$34.99
- ~83 gph at the tank ≈ 4.9× display turnover
- rear-chamber dims unknown for this tank
AC
—
- ~119 gph at the tank ≈ 7.1× display turnover
- rear-chamber dims unknown for this tank
DC
$146.00
- DC pump — dial flow to taste
- strong: ~14.5× turnover — fine if controllable/throttled
- rear-chamber dims unknown for this tank
DC
$159.00
- DC pump — dial flow to taste
- strong: ~23.9× turnover — fine if controllable/throttled
- rear-chamber dims unknown for this tank
Compare all return pumps ranked for the UNS 40A Dual AIO (Cube) →
Tank specs
| Display volume | 16.9 gal |
| Total water volume | 16.9 gal |
| Outer dimensions (L×W×H) | 15.74 × 15.74 × 15.74 in |
| Rear chamber (W×D×H) | unknown |
| Stock return pump | — |
| Stock light | none |
Largest cube in the UNS Dual All-In-One line, 6mm glass, integrated rear triple-chamber filter. 16.9 gal listed (volumeTotalGal set equal). Ships with a ~16W return pump (UNS does not publish GPH, so null). No light. Rear-chamber internal dims not published, so chamber omitted.