Dophin · Rimless
GT3000 Series Glass Tank
- Volume
- 14.8–57 L
- Dimensions (L × W × H)
- 30–50 cm long
A budget nano or small scape where you plan to choose your own light, filter and CO2.
5 models
UNS · Rimless
UNS Rimless Nano Aquarium
The 3N and 5N are the small UNS tanks a lot of people start with. They are low-iron rimless boxes with mitred corners, sized for a desk or shelf, and the 5N in particular has become a standard nano size that plenty of lights and filters are built around.
Updated
11–17.4 L2 models
Will it suit my tank?
litres
Best for
A first planted nano, a shrimp colony or a desk scape where you want a clean glass box without a rim.
Worth knowing
Small water volumes swing fast in temperature and parameters, so dose and top up with care.
What stands out
- Two sizes: 3N (about 11 L) and 5N (about 17 L)
- 5 mm low-iron glass with 45 degree mitred corners
- Proportions suit a shrimp tank, betta tank or a small iwagumi
- Comes with a black levelling mat
Models and specs
| Model | Volume | Dimensions (L × W × H) | Glass |
|---|---|---|---|
| 3NUNS3N | 11 L | 31 × 19 × 19 cm | 5 mm |
| 5NUNS5N | 17.4 L | 36 × 22 × 22 cm | 5 mm |
- Brand
- UNS
- Edges
- 45 degree mitred corners
- Glass
- Low-iron (91% clarity) Diamant glass
- Silicone
- Clear German silicone
- Included
- Black levelling mat
Figures from Glass Aqua's product listing. Makers revise products, so check the current figures before buying. Photos supplied by the brand or its distributor.
Compare with
Browse all aquariums
Dophin · Rimless
GT6000 Cube Glass Tank
- Volume
- 15–18 L
- Dimensions (L × W × H)
- 25 cm long
A shrimp or nano cube with mosses, small epiphytes and a carpet, where the taller GT-6002 gives a little more room for stem plants.
2 models
Oase · Rimless
ScaperLine
- Volume
- 75–250 L
- Dimensions (L × W × H)
- 60–100 cm long
Aquascapers who want an open-top, show-quality tank and cabinet that match, and already know which light and filter they want.
3 models
SunSun · Rimless
HEK Series Open Aquarium
- Volume
- 11–127 L
- Dimensions (L × W × H)
- 30–77.5 cm long
A first planted nano or small scape where you want tank, light and filter in one purchase.
5 models
Frequently asked questions
Quick answers about the UNS Rimless Nano Aquarium, drawn from its specs.
How many litres is the UNS Rimless Nano Aquarium?
3N: 11 L, 5N: 17.4 L. Expect about 15 to 20 percent less water once substrate and hardscape are in.
What filter do I need for the UNS Rimless Nano Aquarium?
For the 3N (11 L), look for a filter rated at roughly 60–110 L/h. Our filter matcher lists the ones that fit.
Who is the UNS Rimless Nano Aquarium best for?
A first planted nano, a shrimp colony or a desk scape where you want a clean glass box without a rim.
Is there anything to watch out for with the UNS Rimless Nano Aquarium?
Small water volumes swing fast in temperature and parameters, so dose and top up with care.
What are the alternatives to the UNS Rimless Nano Aquarium?
Other aquariums worth comparing: Dophin GT3000 Series Glass Tank, Dophin GT6000 Cube Glass Tank, Oase ScaperLine. Add any of them to the compare table to see the specs side by side.