# Aquarium Heater Hagen Marina 50W with Thermostat — Submersible 50 W Temperature Control

**URL:** https://aio.lv/en/product--hagen-vat005320--12043672
**Data updated:** 2026-03-12 19:25 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** Hagen
**Manufacturer code:** VAT005320
**EAN:** 015561112321
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 24.49 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 20.24 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hagen-vat005320--12043672

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

Hagen Marina 50W aquarium heater with integrated thermostat provides stable water temperature regulation for small aquariums. Submersible 50 W design maintains set temperature for tropical fish, shrimp and aquatic plants; features adjustable thermostat control and compact form for discreet installation. Suitable for routine temperature maintenance and seasonal adjustments.

## Long description

The Hagen Marina 50W aquarium heater with integrated thermostat is a submersible heating solution designed for small freshwater and tropical aquariums. Its 50 W power output provides gentle, consistent heating to maintain a stable environment for fish, shrimp and aquatic plants. The compact tubular design allows discreet placement inside the tank and the adjustable thermostat lets you set and hold the desired temperature with minimal maintenance.
Advantages
The compact submersible construction ensures even heat distribution without obstructing the aquarium layout. An integrated adjustable thermostat provides automatic temperature regulation, reducing the need for frequent manual checks. The heater's modest power consumption is appropriate for small tanks and supports gradual temperature changes that are safer for aquatic life. Durable materials resist corrosion from freshwater conditions.
Suitable for
Small tropical freshwater aquariums
Shrimp and small fish tanks
Planted aquariums that require stable temperatures
Seasonal temperature adjustments and routine maintenance
Key specifications
Power: 50 W
Type: Submersible tubular heater with integrated thermostat
Temperature control: Adjustable thermostat for maintaining set temperature
Suitable environment: Freshwater and tropical aquarium use
Installation: Internal placement with compact, discreet design
How to use
Install the heater fully submerged in the aquarium according to the minimum water level indicated by the manufacturer, positioned near a gentle current to distribute heat evenly. Adjust the thermostat to the target temperature for your species, allow the heater to stabilize, and monitor water temperature with an independent thermometer until consistent readings are observed. During water changes or maintenance, ensure the unit remains submerged while powered off and avoid operating it out of water to prevent damage.
Usage recommendations
For reliable temperature control, pair the heater with a separate aquarium thermometer and check settings after major water changes. Place the heater away from direct contact with substrate or decor to ensure unobstructed water flow around the unit. Regularly inspect the heater for signs of wear and confirm thermostat accuracy periodically to maintain a healthy, stable environment for fish and plants.

## FAQ

### How much does the Hagen Marina 50W Aquarium Heater cost, and is it available for purchase?

The price is 24.49 € (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 16.07.2026 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 Hagen 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 Hagen 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/12043672/67530518_large.webp