# Aeration Stone ZOLUX 19.5 cm — aquarium air diffuser stone

**URL:** https://aio.lv/en/product--zolux-vat000465--12053139
**Data updated:** 2026-03-12 19:36 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** ZOLUX
**Manufacturer code:** VAT000465
**EAN:** 3336023347165
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.99 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 4.95 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--zolux-vat000465--12053139

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

ZOLUX aeration stone, 19.5 cm, is an aquarium air diffuser designed to produce fine bubbles for improved oxygenation and water circulation. Suitable for use with air pumps and tubing, the stone helps increase dissolved oxygen, reduce dead zones, and enhance filtration efficiency. Ideal for freshwater and marine tanks to support fish and beneficial bacteria.

## Long description

ZOLUX aeration stone 19.5 cm is an aquarium air diffuser designed to produce a steady stream of fine bubbles to improve oxygenation and water circulation in freshwater and marine tanks. The porous stone diffuses air supplied from an external air pump into many small bubbles, which helps increase dissolved oxygen levels, reduce stagnant zones and support efficient biological filtration. Compatible with standard aquarium tubing, the aeration stone is suitable for use in hobby aquariums, planted tanks and systems where improved gas exchange is required.
Advantages
The ZOLUX aeration stone delivers uniform fine-bubble diffusion that promotes better oxygen distribution throughout the tank without creating excessive water movement. Its elongated design provides a larger aeration surface area compared with small disk stones, allowing more effective gas exchange. The ceramic or sintered material resists clogging under normal use and provides stable performance when connected to a compatible air pump and tubing.
Suitable for
Freshwater community aquariums
Marine and reef tanks requiring supplemental aeration
Planted tanks where gentle bubble flow is preferred
Biological filtration areas and substrate oxygenation
Key specifications
Length: 19.5 cm
Function: Air diffusion for increased dissolved oxygen and improved circulation
Material type: porous ceramic/sintered stone (diffuser material)
Connection: suitable for standard aquarium air tubing
Bubble output: fine bubbles for efficient gas exchange
How to use
Connect the aeration stone to an appropriate aquarium air pump using standard silicone tubing. Place the stone on the tank bottom, buried lightly in gravel or positioned where bubble distribution is desired; ensure the area around the stone remains free of excessive debris. Adjust the pump output with a valve or regulator if needed to obtain the preferred bubble size and flow. Periodically inspect the stone for reduced output and clean it according to the maintenance guidance below.
Usage recommendations
Install the aeration stone in a location that promotes even circulation without disturbing delicate plants or corals. If bubble output decreases, soak the stone in warm water and gently brush with a soft brush to remove surface deposits; avoid harsh chemicals. Use with an air pump that matches the aquarium size to ensure appropriate airflow. For aquaria with biological filtration systems, position the stone to improve oxygen supply to filter media and substrate.

## FAQ

### How much does the ZOLUX aeration stone 19.5 cm cost, and is it available for purchase?

The price is 5.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 70 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 13.07.2026 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 ZOLUX 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 ZOLUX 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/12053139/67539221_large.webp