Seachem Onyx Sand 7kg (SC-3505)

SC-3505

New product

  • Premium natural sand for the planted aquarium
  • Allows beneficial bacteria to colonise and provide bio filtration
  • Supports optimal KH levels for freshwater planted aquariums
  • Rich in carbonates

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$ 61.30

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Brand: Seachem

 
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Seachem Onyx Sand 7kg (SC-3505)

Onyx Sand Black is a natural substrate for scaping planted aquarium. The gravel allows beneficial bacteria to colonise and provide bio filtration.

Advantages

Gravel is one of the most important elements of an aquarium. The gravel serves as a home for beneficial bacteria. As bacterial colonise the substrate, natural bio filtration takes place within the substrate as the bacteria breaks down organic wastes, leftover food, and plant debris. This helps to keep the water clean and safe for your fish and plants.

Onyx Sand is a naturally dark gray sand that perfectly complements and enhances the appearance of any aquarium. It supports optimal KH levels for freshwater planted aquariums. Although ideally suited to planted aquaria, it may be used in any aquarium environment.

Onyx Sand is most effective when used alone as an integral substrate bed, but it may be mixed with other gravels. Gravel modifiers such as laterite are not necessary. Onyx Sand is not chemically coated or treated, and as a carbonate rich sand, it has a slight buffering capacity that may raise pH by 0.1 - 0.5 pH units (depending on source water characteristics). Onyx Sand is good for the life of the aquarium and need not be replaced.

Set-up

Although it is pre-washed, because Onyx Sand Black Sand is a natural product, it may become dusty in transit and require rinsing before use to remove any residual dust.

When adding water to aquarium, fill slowly to avoid disturbing Onyx Sand Black Sand substrate bed. Place a bowl in the aquarium and add water directly to the bowl, allowing water to overflow softly on to the gravel bed. Initial cloudiness is normal. To remove cloudiness, use mechanical filtration (such as filter floss). Use Clarity to accelerate clearing.

Seachem Online Shop

N30 is the authorised dealer in Singapore for Seachem aquarium supplies.

Order your Seachem aquarium products online today at n30.com.sg

 
Seachem Guide

Which Seachem products do I need?

From treating fish infections to solving water and algae problems, Seachem has the right products to restore your aquarium.

Seachem - Fish Disease Treatment

A sick fish can spread infection quickly within an aquarium and threaten the life of other aquatic inhabitants. It is critical to accurately diagnose fish disease and dose the right medications as early as possible.

common fish diseases symptom guide - seachem medication guide

Seachem - Solve Aquarium Problems

Sometimes, a small change in water chemistry, alkalinity and acidity could cause problem for the aquarium. Below are some of the common problems:

  • Cloudy water
  • Algae over growing
  • Ammonia, nitrite, nitrate toxicity
  • Detritus or slime

Is your aquarium facing any of the above issues? If yes, use this guide to find the right Seachem products to restore your aquarium.

seachem products for common aquarium problems

About Expiration of Seachem Products

Many Seachem products do not have an expiration date by virtue of the ingredients used to make the products. Many mineral and non-organic components are shelf-stable, and do not have a finite shelf-life, and may be used for years with continued efficacy. If a product does not have a printed date of expiration, it can safely be assumed that the product does not expire.

expiration date of seachem products

 
About N30

About N30 Tank

N30 Tank Pte. Ltd. is a leading manufacturer of custom-made fish tanks cabinets. As a tank maker, we supply aquarium cabinets to homes and offices locally as well as ship orders worldwide.

N30 provides expertise in the construction of large acrylic aquariums, such as those in Underwater World (Resort World Sentosa). We supply customised storage tanks to fish farms such as Qian Hu, and to major restaurants. The N30 brand name is trusted for quality workmanship in the industry.

N30 has developed unique glass-sealing techniques, which allows us to produce very large tanks (such as 30-feet long) without issue of water leakage. For all custom-made fish tanks, N30 assures customers of Five Years Warranty against water leakage.

To support the needs of aquarium hobbyists, N30 is also offering a wide range of aquarium accessories such as filters, pumps, lighting, wave makers, skimmers... for sale online. We encourage customers to browse and shop online at n30.com.sg for accessories. It is convenient and we provide free delivery for orders (see the online store terms and conditions for details).

 
Loyalty Points

Loyalty Points (N30 Member Rewards)

Earn 5 points per dollar

N30 members earn five points per dollar spent online at n30.com.sg. Each point is worth S$0.01 in cash value.

Convert points into eVouchers redeemable for discounts on your orders.

shopearn pointsredeem

Example:
When you purchase S$100 of aquarium accessories online at n30.com.sg, you will earn 500 points in your N30 account. You may convert the 500 points into an eVoucher worth S$5. To use this eVoucher on your next order, simply enter the unique eVoucher code in your shopping cart before you check out. That's all!

The more you shop on n30.com.sg, the more you will save on your next order!

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