At a width of 50 cm and standing 66 cm tall the RIO 350 Marine is the extra-special aquarium in the RIO range.
Large fish and even the most demanding of marine species will be right at home in the RIO 350 Marine. The safety base frame ensures especially safe positioning and allows you to set up your aquarium easily, with no need for special support.
Painstaking workmanship from Germany, top-quality materials and perfectly tuned technology guarantee the very best of quality and safety, meaning a long service life for your RIO 350 Marine.
Choose from black, dark wood, light wood and white.
Brilliant lighting and outstanding plant growth, the modern MultiLux LED lighting technology from JUWEL offers. The replaceable 31 Watt LED tubes MARINE and BLUE produce an optimal light spectrum with a simultaneous energy saving of up to 50% compared to T5. The MultiLux LED illumination system of the RIO 450 LED allows comfortable working in the aquarium even when the lighting is switched on. The ultrasonic-welded luminaire is 100% watertight and meets the high European safety standards.
For optimum filtering, the RIO 350 LED is fitted with a high-performance Bioflow L. This internal filter combines efficiency with safety and forms the centrepiece of any JUWEL aquarium. It works on the principle that "The water should stay in the aquarium!" and is the safest way of filtering an aquarium. The Bioflow L comes fitted with five high-performance filter media and a quiet yet powerful Eccoflow 1000 circulation pump.
The 300 Watt JUWEL adjustable heater, which is perfectly embedded in the water circulation in the Bioflow L filter system, ensures the right temperature in the RIO 350 LED.
Because it uses top-quality silver contacts and shock-proof borosilicate glass, JUWEL adjustable heaters meet the highest standards in both function and safety and, as you would expect, are TÜV/GS certified.
With the matching base cabinet, your aquarium will stand safely on solid ground. The two of them also make the perfect pair from a visual point of view, as the base cabinet is available in the same colour as the aquarium. Easy to assemble with generous storage space for accessories and equipment, they also leave nothing to be desired from a practical point of view.
In fact, all that is left for you to do is simply to enjoy your beautiful style accessory every day!
We accept all major Credit and Debit cards, and these are processed via a third party payment gateway called Opayo.
We also accept payments via PayPal, PayPal credit, Clearpay and Klarna which are both pay in 4 interest-free instalments.
Also, you can pay using Android and Apple Pay if you are using a compatible device.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
When speaking to one of our team, we will never ask you for your bank details, passwords or any private information. We will only ever ask for your order number followed by either your postcode, email address or phone number to verify we are talking to the person named on the account.
When creating an account on our website, we ask that you use a unique password, this will help keep all your online accounts safe. If you are visiting our website via a smartphone we suggest you use the strong password and store it securely on your phone.
Our website is run on Visual Soft, which means all your data is stored securely on their servers.
Next Day Shipping Upgrade - Cut off is at 2:00 pm
Orders after that time will be processed the next working day
Please Note: We only deliver ponds and pond plants on our own delivery vehicles!
The blue highlighted area on the map below is where we deliver on our own vehicle! Unfortunately, if you are not in one of these postcode zones we are unable to deliver certain items such as plants, small glass items and selective other products.
We offer a few different delivery options depending on the size and value of your order.
Orders over £50 qualify for free mainland UK (excludes Northern Ireland) delivery which will arrive within 3-5 working days of the order being processed.
Residents of Northern Ireland, please provide your EORI or XI Number.
If you do not have one, please follow the information at https://www.gov.uk/eori
Orders Below £50 in Mainland UK will be charged a standard delivery fee of £5.99.
Additional Shipping Charges
For any orders that do not include Aquariums, the below is charged:
Next Working Day Parcel Delivery to Mainland UK - £7.99 OR £2.99 if the order is over £50
Standard Parcel Delivery to Northern Ireland £8.99
Standard Parcel Delivery to Scottish Highlands & Islands £9.99
Standard Parcel Delivery to Jersey & Guernsey £12.99
For all Aquarium deliveries (Excluding biOrbs & Smaller Aquariums), the below is charged:
Next Working Day Pallet Delivery - £20
2 Hour Booking Slot Pallet Delivery - £20
Pallet Delivery to Northern Ireland - £45
Pallet Delivery to Isle of Wight (PO36 and Above) and Scottish Highlands (AB, PH, IV1-36, IV, KW1-14, KY, PA21-41) - £45
Pallet Delivery to the Scottish Isles (KA27-28, PA60-90, ZE, JE, GY, IM, IV40-56, KW15-17, PH42-44, PA20, PA42-49) - £120
Pallet Delivery to Outer Hebrides (HS) - £140