Black Diamond 18" Wide Polished Tank – 460 x 305 x 305mm (4mm Glass)
Black Diamond 18" Wide Polished Tank – 460 x 305 x 305mm (4mm Glass)
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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 versatile, display-worthy nano tank with generous floor space for aquascaping or small communities.
🔍 Key Features
Size: 460mm (L) x 305mm (W) x 305mm (H)
Glass Thickness: 4mm polished panels for clarity and dependable strength
Construction: Precision-joined using clear silicone for seamless visibility and structural reliability
Base Layer: Reinforced with a white polystyrene base to reduce pressure on glass joints
Edge Work: All glass edges fully polished for a refined and safe finish
Aquascaping Ready: Wide footprint allows for décor, driftwood, and plant layouts
Stand Compatibility: Pairs perfectly with our Black Diamond support stands
📄 Product Description
The Black Diamond 18" Wide Polished Tank provides excellent proportions for nano aquariums that need just a bit more space. With a wider footprint than its narrow counterpart, it’s perfect for aquascaping, small fish communities, or invertebrate tanks.
Crafted with 4mm polished glass, bonded with clear silicone, and finished with smoothed edges, this tank doesn’t compromise on style or strength. It’s ideal for use in office spaces, on countertops, or as part of a multi-tank display rack.
🐠 Recommended Species / Families
Planted Betta Community Tanks
Celestial Pearl Danios
Pygmy Corydoras
Neocaridina Shrimp Colonies
Chili Rasboras, Ember Tetras
Endler’s Livebearers
⚠️ Important Note
To avoid breakage or stress on the tank’s joints, ensure it is placed on a level and supportive surface. For best results and peace of mind, use it with one of our custom-designed Black Diamond tank stands.
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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