# Aquarium and Terrarium Polished Black Pebble Gravel NB Minerals 10–20 mm, 5 kg

**URL:** https://aio.lv/en/product--nb-minerals-tn-41090--11983314
**Data updated:** 2026-03-11 16:39 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** NB Minerals
**Manufacturer code:** TN-41090
**EAN:** 5904479410900
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 14.99 €
**Prices and availability valid until:** 2026-08-02 23:59
**Price without VAT (21%):** 12.39 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--nb-minerals-tn-41090--11983314

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.07.2026 | free |
| Pickup points | 27.07.2026 | 1.89 EUR |
| Courier delivery to door | 27.07.2026 | 4.99 EUR |

## Summary description

Polished black pebble gravel from NB Minerals sized 10–20 mm, packed as a 5 kg bag. Designed for use in aquariums and terrariums as a decorative substrate or ground cover. Smooth, rounded pebbles provide a stable surface for plants and décor, help anchor ornaments, and create a natural look for freshwater setups and reptile enclosures.

## Long description

Aquarium and Terrarium Polished Black Pebble Gravel NB Minerals 10–20 mm, 5 kg is a decorative substrate composed of smooth, rounded polished pebbles sized 10–20 mm. Intended for freshwater aquariums and reptile terrariums, the black pebbles create a natural, contrast-rich base that highlights plantings, ornaments and the colours of fish or reptiles. The 5 kg bag supplies enough material to cover small to medium-sized tanks or to blend with other substrates for layered landscaping.
Advantages
The polished finish reduces sharp edges, offering a stable surface for planting and ornament placement while minimising risk of damage to delicate fins and soft-bodied animals. The uniform 10–20 mm fraction ensures consistent visual texture and good water flow between grains. Being natural stone, the pebbles are chemically inert and will not noticeably alter water parameters when rinsed before use. Packaging in a 5 kg bag provides a practical quantity for hobbyists and terrarium keepers.
Suitable for
Freshwater aquariums as a decorative substrate or base layer
Terrariums and paludariums for reptiles, amphibians and terrestrial plants
Background landscaping, accent areas and planting anchors
Combining with finer substrates to create layered visual effects
Key specifications
Pebble size: 10–20 mm
Finish: Polished, smooth surface
Colour: Black
Material: Natural stone pebbles
Net weight: 5 kg
How to use
Rinse the pebbles thoroughly under running water until the rinse water runs clear to remove dust and fines from processing and transport. Spread an even layer across the tank or terrarium floor to the desired depth, typically 1–3 cm for accent layers or 2–5 cm when used as the primary substrate, depending on plant and animal requirements. Place ornaments and plants on top, using the pebbles to help anchor stems and décor. For aquariums, add water slowly to avoid displacing the substrate.
Usage recommendations
Before introducing animals, monitor water parameters after setup to confirm stability. Avoid using the pebbles with species that require very fine, sandy substrates for burrowing. Combine with nutrient-rich substrate layers beneath the pebbles when keeping rooted aquatic plants that require fertilised substrate.

## FAQ

### How much does the NB Minerals Black Pebble 10–20 mm, 5 kg cost, and is it available for purchase?

The price is 14.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 11 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 22.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All NB Minerals products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized NB Minerals service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11983314/68525919_large.webp