# Aquarium Gravel Sera Gravel Black 2–3 mm 3 l, black

**URL:** https://aio.lv/en/product--sera-se-45251--11365740
**Data updated:** 2026-03-11 12:05 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** sera
**Manufacturer code:** SE-45251
**EAN:** 4001942452519
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 18.49 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 15.28 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sera-se-45251--11365740

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Sera Gravel Black is aquarium substrate in black color with grain size 2–3 mm, supplied in a 3-liter package. It serves as decorative and functional substrate for freshwater aquariums, suitable for planted tanks and fish habitats that require fine gravel. Use for substrate layering, anchoring plants, and improving tank aesthetics.

## Long description

Sera Gravel Black 2–3 mm is a black aquarium substrate supplied in a 3-liter package designed for freshwater aquariums. With a uniform grain size of 2–3 mm, this gravel serves both decorative and functional roles: it creates a dark, natural-looking bottom that highlights fish colors and plants while providing a stable base for rooting and substrate layering in planted tanks. The product is intended for aquarists who prefer a fine gravel that is easy to shape and maintain.
Advantages
The dark color of the gravel enhances visual contrast and brings out the coloration of fish and plants without introducing dyes that fade. The 2–3 mm grain size provides a balance between fine sand and coarse gravel, allowing good water circulation through the substrate while preventing overly compacted layers. Supplied in a pre-measured 3 l package, it is convenient for small to medium aquaria and for targeted redecoration or plant anchoring.
Suitable for
Freshwater community aquariums
Planted tanks requiring a fine gravel top layer or landscaping
Nano aquaria and small tanks where a dark substrate is desired
Fish species that prefer or tolerate fine gravel bottoms
Key specifications
Color: black
Grain size: 2–3 mm
Volume: 3 litres
Intended use: freshwater aquariums, planted tanks
Function: decorative substrate, plant anchoring, substrate layering
How to use
Rinse the gravel briefly with dechlorinated water until the runoff is clear to remove dust from storage and transport. Spread an even layer across the aquarium bottom; for planted aquaria, consider a base layer of nutrient substrate below and use the gravel as a top layer to anchor plants and improve aesthetics. Aim for a depth of 2–4 cm for basic decoration or 4–6 cm where robust plant rooting is required. When performing water changes or maintenance, use a gravel vacuum carefully to avoid excessive removal of substrate.
Usage recommendations
Before adding livestock, monitor water parameters after placement and rinsing; avoid sudden changes in substrate depth near sensitive burrowing species. For optimal plant growth, combine with dedicated plant substrates or root tabs as needed.

## FAQ

### How much does the Aquarium Gravel Sera Gravel Black 2–3 mm 3 l cost, and is it available for purchase?

The price is 18.49 € (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 14.07.2026 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/11365740/65852039_large.webp