# Aquarium and terrarium decorative crushed polished stones NB Minerals blue ocean 8–12 mm 5 kg

**URL:** https://aio.lv/en/product--nb-minerals-tn-41115--11983283
**Data updated:** 2026-03-11 16:39 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** NB Minerals
**Manufacturer code:** TN-41115
**EAN:** 5904479411150
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 11.49 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 9.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--nb-minerals-tn-41115--11983283

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.07.2026 | free |
| Pickup points | 23.07.2026 | 1.89 EUR |
| Courier delivery to door | 23.07.2026 | 4.99 EUR |

## Summary description

Decorative crushed, polished stones by NB Minerals in Blue Ocean color, grain size 8–12 mm, packaged as a 5 kg bag. Suitable for aquarium and terrarium substrate, substrate decoration, and landscaping in vivaria. Non-toxic, smooth polished surface reduces debris build-up and provides natural appearance for aquatic and terrestrial setups.

## Long description

Aquarium and terrarium decorative crushed polished stones NB Minerals blue ocean 8–12 mm 5 kg are natural-looking polished gravel designed for use in aquaria, terraria and vivarium landscapes. The product offers smooth, rounded grains in a Blue Ocean color range with a consistent grain size of 8–12 mm, supplied in a 5 kg bag. Stones are non-toxic and feature a polished surface that reduces fine debris accumulation and helps maintain clearer water and cleaner substrate surfaces in both aquatic and terrestrial enclosures.
Advantages
The polished finish provides a smooth surface that is gentle on aquatic fauna and reduces trapping of detritus compared to rough gravel. Uniform grain size of 8–12 mm makes the substrate easy to layer and clean, while the Blue Ocean color gives a natural and stable appearance that enhances plant and animal contrast. Being non-toxic and stable in water chemistry, these stones are suitable for long-term use in both freshwater aquariums and terrarium setups.
Suitable for
 Freshwater aquarium substrate and decoration
 Terrarium and vivarium floor covering and landscape accents
 Planted tanks when used with proper planting technique and root support
 Decorative pathways and focal points in reptile and amphibian enclosures
Key specifications
 Grain size: 8–12 mm
 Color: Blue Ocean (polished finish)
 Finish: Polished, smooth surface
 Packaging: 5 kg bag
 Material: Natural crushed stone, polished
 Chemical stability: Non-reactive and non-toxic when used in typical freshwater and terrestrial conditions
How to use
Rinse the stones thoroughly under running water before adding them to an aquarium or terrarium to remove any packing dust. For aquaria, spread an even layer of gravel to the required depth, taking into account plant root systems and filtration flow; typical depth for decoration and substrate support is 2–4 cm or deeper for planted tanks with additional substrate layers. For terraria and vivaria, distribute stones to create desired landscape contours and secure plantings or hides. Monitor water parameters after initial placement and after a few water changes to ensure stability.
Usage recommendations
Avoid using these stones in setups requiring very fine substrate for burrowing species; pair with appropriate soil or sand layers for species that need finer grain. Regular mechanical filtration and periodic vacuuming of the surface will help maintain clarity and hygiene. If used in planted aquaria, consider adding a nutrient layer beneath the stones for optimal plant growth.

## FAQ

### How much does the NB Minerals polished stones 8–12 mm 5 kg cost, and is it available for purchase?

The price is 11.49 € (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 20.07.2026 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/11983283/67438820_large.webp