# Aquarium gravel sera Gravel Brown 2–3 mm 6000 ml by sera

**URL:** https://aio.lv/en/product--sera-108727--11360255
**Data updated:** 2026-03-11 12:04 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** sera
**Manufacturer code:** 108727
**EAN:** 4001942452502
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 29.99 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 24.79 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sera-108727--11360255

## 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 Brown is aquarium substrate gravel with grain size 2–3 mm supplied in a 6000 ml container. Designed for freshwater aquariums, this brown gravel provides a stable base for plants, decor and biological filtration, supports root anchoring and beneficial bacterial colonization, and suits aquascaping, community tanks and planted setups.

## Long description

Sera Gravel Brown 2–3 mm is a natural-colored aquarium substrate supplied in a 6000 ml container and intended for freshwater tanks. The medium-grain gravel creates a stable base layer for plants, hardscape and decorations while allowing water flow through the substrate to support biological filtration. Its brown tone blends with natural aquascapes and helps conceal roots and equipment. The grain size of 2–3 mm ensures good anchoring for plant roots and provides interstitial space for beneficial bacteria.
Advantages
The gravel delivers an even, durable substrate layer that resists compaction while permitting oxygenated water movement. Neutral in composition and color, it integrates with planted and community aquariums without altering water chemistry. The 2–3 mm grain supports root penetration for most common aquarium plants and creates a habitat for nitrifying bacteria crucial to the nitrogen cycle.
Suitable for
 Freshwater planted aquariums
 Community tropical tanks
 Aquascapes with natural, earthy aesthetics
 Substrate for rooting plants and stable décor placement
 Biological filtration support in undergravel or layered systems
Key specifications
 Grain size: 2–3 mm
 Volume: 6000 ml
 Color: brown (natural tone)
 Intended use: freshwater aquariums
 Mechanical properties: medium-grain, low compaction
How to use
Rinse the gravel briefly with clean tap water to remove dust before adding to the aquarium. Spread an even layer on the tank bottom; recommended depth depends on plants and design but typically ranges from 2 to 5 cm for general setups and up to 8 cm for heavily planted aquaria requiring deeper rooting. Arrange hardscape and plants on top of the substrate, taking care to position root-feeding plants with their roots buried. Start filtration and cycle the aquarium according to standard freshwater procedures.
Usage recommendations
For best results combine sera Gravel Brown with a nutrient-rich substrate layer beneath if growing demanding aquatic plants. Avoid using acidic water treatments that could alter the neutral characteristics of the gravel. Regular vacuuming of the surface layer during maintenance preserves water quality while leaving settled bacteria in deeper layers intact.

## FAQ

### How much does the Aquarium gravel sera Gravel Brown 2–3 mm 6000 ml 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 — 10 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/11360255/65839824_large.webp