# Aquarium Gravel sera gray 2–3 mm, 6 L — decorative substrate

**URL:** https://aio.lv/en/product--sera-se-45254--12029854
**Data updated:** 2026-03-12 16:38 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** sera
**Manufacturer code:** SE-45254
**EAN:** 4001942452540
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 29.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 24.79 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sera-se-45254--12029854

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

sera aquarium gravel, gray granules sized 2–3 mm in a 6 L package. Designed as a decorative substrate for freshwater aquariums, it provides a stable bed for plants and décor, supports biological filtration by offering surface area for beneficial bacteria, and helps anchor roots. Suitable for community tanks, planted setups and ornamental displays.

## Long description

sera gray aquarium gravel with 2–3 mm granules in a 6 L package is a decorative substrate designed for freshwater aquariums. The uniformly sized gray granules create a natural-looking bottom layer that complements aquatic plants, décor and fish color. The gravel provides a stable bed for planting, helps anchor roots and increases surface area to support colonization by beneficial bacteria that contribute to biological filtration.
Advantages
The even grain size (2–3 mm) ensures consistent water flow through the substrate and reduces compaction compared with finer sands. Gray coloration offers a neutral background that highlights plant foliage and fish without overwhelming tank aesthetics. Packaged as 6 L, the product covers an appropriate substrate depth for small to medium aquaria and is pre-washed to reduce initial clouding when added to the tank.
Suitable for
Community freshwater aquariums with small to medium fish
Planted tanks where a stable rooting substrate is needed
Ornamental displays and aquascapes emphasizing neutral backgrounds
Aquariums requiring additional surface area for beneficial bacteria
Key specifications
Granule size: 2–3 mm
Color: gray
Volume per package: 6 L
Intended use: decorative substrate for freshwater aquaria
Physical form: pre-washed gravel granules
How to use
Rinse the gravel briefly under running water to remove any residual dust before adding to the aquarium. Spread an even layer across the tank bottom to the desired depth, typically 2–4 cm for simple displays and 4–6 cm where planted roots should be anchored. Place plants, rocks and décor on top of the gravel and fill the aquarium slowly to avoid disturbing the substrate. Monitor water clarity during first hours and perform light rinsing in a separate container if necessary.
Usage recommendations
For planted aquaria, use a nutrient-rich substrate or root tabs in combination with this gravel to supply plant nutrients. Avoid mixing with very fine sand in large proportions to prevent compaction. When performing maintenance, use a gravel vacuum carefully to retain beneficial bacteria in the substrate layer.

## FAQ

### How much does the sera aquarium gravel gray 2–3 mm, 6 L cost, and is it available for purchase?

The price is 29.99 € (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 08.07.2026 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 sera 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 sera 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/12029854/67517557_large.webp