← UNS 30A Dual AIO (Cube) · All nano reef lights
Best lights for the UNS 30A Dual AIO (Cube)
Match the fixture's coverage footprint to your tank's display footprint — a light rated for a 12×12 in area is a poor fit over a 16×16 in tank. Then pick an intensity tier based on your corals: low for soft corals or FOWLR, medium for LPS or mixed reefs, high for SPS. Most nano light manufacturers don't publish PAR, so coverage and intensity tier are the practical sizing handles.
The UNS 30A is the smallest cube in Ultum Nature Systems' Dual All-In-One line, a rimless 11.81 in cube rated 7.1 gallons with an integrated rear triple-chamber filter (sponge, bio media, return pump). It ships with a small (~10W) return pump but no light, and UNS does not publish flow (GPH) or internal rear-chamber dimensions, so equipment fit should be verified by measurement. It is a clean-look nano platform popular for pico reef, shrimp, and planted builds.
Ranked for an LPS / mixed-reef setup. For SPS or soft-only goals, use the sizing tool.
AI Blade Grow 12" $263.99
- covers 11.81×12" display area
- LPS/mixed intensity meets your LPS goal
All lights compared
| Light | Coverage | Intensity | Price | Verdict |
| AI Blade Grow 12" Aqua Illumination | 12×12″ | Medium | $263.99 | Top pick |
| Fluval Marine 3.0 (22W, 15-24") Fluval | 24×12″ | Medium | — | Recommended |
| Kessil A160WE Tuna Blue Kessil | 24×24″ | Medium | $259.00 | Recommended |
| Nicrew HyperReef 50 (Gen 2) Nicrew | 24×24″ | Medium | — | Recommended |
| AI Prime 16HD Reef Aqua Illumination | 24×24″ | High | $264.99 | Recommended |
| Reef Breeders Reef Nano LED Reef Breeders | 24×24″ | High | $169.99 | Recommended |
| Fluval Marine 3.0 Nano (20W) Fluval | 9×9″ | Low | $109.99 | Too dim for goal |
| Kessil A80 Tuna Blue Kessil | 24×24″ | Low | $139.00 | Too dim for goal |
FAQ
Why use coverage footprint and intensity tier instead of PAR?
Most nano fixture manufacturers don't publish PAR data, so PAR-based comparisons aren't possible across the market. Coverage footprint and intensity tier give you a consistent, actionable way to match a light to your tank size and coral type without needing a PAR meter.
What intensity tier do I need for a mixed LPS reef?
Choose a medium-intensity fixture for a mixed LPS or mixed reef tank. Low-intensity lights are sufficient for soft corals and FOWLR setups, while high-intensity fixtures are needed only if you plan to keep demanding SPS corals.
Can I use a light rated for a larger footprint than my tank?
Yes, but it introduces more risk than benefit on a nano. You may end up with excess intensity at the center and uneven coverage, and you'll pay for output you don't need. Matching footprint closely is the better approach.