Black Diamond 18" Wide Polished Tank (Black Silicone Series) – 460 x 305 x 305mm
Black Diamond 18" Wide Polished Tank (Black Silicone Series) – 460 x 305 x 305mm
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- Made in South Africa
- Secure card payment
- Collect in store at our 3 Gauteng stores
- Questions? Send us a message
A wider nano tank with extra depth and display presence – perfect for aquascaping, nano communities, or shrimp colonies.
🔍 Key Features
Size: 460mm (L) x 305mm (W) x 305mm (H) – ideal for nano aquascapes and small fish colonies
Glass Thickness: 4mm polished glass for added durability
Build Quality: Sealed with black silicone for sleek contrast and reinforced strength
Base Support: Includes a white polystyrene pad for leveling and cushioning
Finish: Fully polished glass edges for clean presentation and safety
Compact Yet Spacious: Deeper footprint provides more scaping and stocking flexibility
Locally Crafted: Designed and assembled in South Africa
📄 Product Description
The Black Diamond 18" Wide Polished Tank offers a compact format with more interior space, making it the perfect choice for nano aquascapers, shrimp keepers, and beginner fish hobbyists alike. Measuring 460 x 305 x 305mm, it gives more floor area and water volume than typical nano tanks without taking up excessive space.
Built from 4mm polished glass panels, this aquarium is finished with black silicone seams, giving it a bold, professional appearance. The included white polystyrene base helps protect the tank from uneven surfaces and reduces stress points.
⚡ Recommended Fish Families
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Dwarf Cichlids (Apistogramma, Rams – single pairs)
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Small Tetra Groups (Neon, Ember, Glowlight)
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Shrimp Communities (Neocaridina, Caridina)
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Guppies or Endlers
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Nano Aquascapes with rocks, driftwood, or carpeting plants
⚠️ Important Setup Note
To ensure long-term durability, always place your aquarium on a flat, level surface. We highly recommend using our purpose-built aquarium stands to prevent cracking or glass stress due to surface irregularities.
Collection & returns
Collection & returns
Collect in store: For now, orders are collect in store only. At checkout, choose Pickup at Oakfields (Benoni), or the free Collect in store option for Stoneridge (Edenvale) or Woodbridge (Kempton Park). We email you when your order is ready to collect, usually within 2 to 4 days. Nationwide delivery is coming soon.
Damaged? Please check your order when you collect it. If anything is broken or damaged, tell our store team or contact us as soon as you can with photos of the item and the packaging, and we will replace or refund it at no cost to you.
Changed your mind? You can cancel an online order within 7 days after you receive your goods, without giving a reason (ECTA). You pay only the direct cost of returning it. This does not apply to custom builds made to your specifications.
Faulty or not as described? Under the Consumer Protection Act you have 6 months from when you receive an item to return it if it is defective, at our cost, and choose a repair, a replacement or a refund.
Common questions
Common questions
How thick is the glass?
The glass thickness for each tank is given in its title or description. Across the Black Diamond range it goes from 3mm glass on the 1ft tanks to a 10mm base with 6mm sides on the 4ft tanks.
Is the silicone clear or black?
Black Silicone Series tanks are sealed with black silicone. The other Black Diamond tanks are sealed with clear silicone.
What is included?
It comes with a white polystyrene base. Everything that is included is listed in the product description. If you are unsure, ask us before you order.
Can I get it delivered?
Not yet. For now, orders are collect in store only. At checkout, choose Pickup at Oakfields (Benoni), or the free Collect in store option for Stoneridge (Edenvale) or Woodbridge (Kempton Park). We email you when it is ready, usually within 2 to 4 days. Nationwide delivery is coming soon.
What if it is damaged?
Please check it when you collect it. If anything is broken or damaged, tell our store team or contact us with photos, and we will replace or refund it at no cost to you.
How do I pay?
Pay by card through our secure checkout. The payment options are shown at checkout, and all prices are in South African Rand (ZAR).
Can I get a custom size?
Yes. See custom builds, or send us a message.
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