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Inline External Aquarium Heater PRO 0-1000W – Titanium Heating Element, 16/22mm

Trusted by 500+ aquascapers

Regular price €99,99
  • No heater visible inside the tank
  • Fits standard 16/22 mm tubing
  • Titanium element for fresh or marine
  • Digital control instead of guesswork
  • Shuts off if the flow stops

Heating happens outside the tank, on the tubing of your canister filter, so nothing bulky sits in the middle of the layout. Variable output up to 1000 W and a titanium element cover everything from a nano to a large display tank.

Fast delivery (1–5 days EU)

Carefully packed and protected

Tips from real aquascapers

Description

Inline External Aquarium Heater PRO — Variable 0-1000W, 16/22mm

This external inline heater connects directly to your canister filter's tubing, heating aquarium water as it flows through the filtration system instead of sitting inside the tank. The result: a clean, equipment-free aquascape with even, stable temperature distribution across the whole aquarium — ideal for planted tanks, reef setups, and any display where visible equipment ruins the layout.

Key features

  • Variable 0-1000W output: one unit adapts to nano tanks and large display aquariums alike by adjusting wattage to the exact heating demand.
  • Titanium heating element: corrosion-resistant and safe for both freshwater and marine/reef aquariums.
  • 16/22mm tubing compatibility: integrates with most canister filter systems (Eheim, Fluval and similar) without extra adapters.
  • Digital temperature control: precise readout and adjustment instead of guesswork.
  • Automatic safety shutoff: protects against overheating or dry operation if water flow stops.
  • Invisible installation: mounted outside the aquarium on the filter return line, keeping the display tank free of visible cables and housings.

Specifications

Power range 0–1000W (variable)
Tubing size 16/22mm
Heating element Titanium
Installation Inline, external, connects to canister filter tubing
Safety Automatic shutoff on flow loss / overheating
Suitable for Freshwater & marine aquariums, planted tanks, reef tanks

How much wattage do I need?

A general rule of thumb is roughly 5W per liter for standard room temperatures, though this varies with ambient temperature and tank insulation. Because output is fully variable from 0 to 1000W, this single heater can be dialed in for anything from a small nano cube to a large display aquarium — no need to buy a different model for each tank size.

Frequently Asked Questions

How does an inline external heater work?
It's installed on the outflow tubing of your canister filter. As filtered water passes through the unit, it's heated and then distributed evenly back into the aquarium — no visible heater inside the tank.
Is it compatible with my filter?
Yes, as long as your filter uses standard 16/22mm hose (common on most mid-to-large canister filters). Check your filter's tubing diameter before ordering.
Does it work for both freshwater and saltwater tanks?
Yes — the titanium heating element is corrosion-resistant and safe for both freshwater and marine/reef setups.
What happens if my filter stops running?
The built-in safety shutoff automatically cuts power if water flow stops, preventing dry-running damage or overheating.
  • Professional support

    Expert help when you need it

  • Delivery throughout the EU

    Delivery to all EU countries

  • Secure payment

    Fast and secure payment options

  • Easy returns

    Лесно връщане и замяна

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FAQ

What makes Aquarium Boutique different from mass-market stores?

We don't sell everything — we sell only carefully selected products, personally tested. Every item is chosen with a clear purpose: to work well and last long. You don't need to guess about quality — we've already done that for you.

Do you ship to my country?

Yes, we ship across all of Europe. For Bulgaria we work with BOX NOW and Speedy — fast and reliable home or locker delivery. For other EU countries we use international courier services.

How quickly will I receive my order?

For orders within Bulgaria, we typically deliver within 1–3 business days. For other EU countries — usually 3–7 business days depending on location.

Can I return a product if I'm not satisfied?

Yes. If something doesn't meet your expectations — contact us. We have a clear and fair return policy. Your satisfaction matters to us and we will find a solution.

Do you offer advice on product selection?

Absolutely. Our team keeps aquariums and knows the products personally. Write to us — we'll help you choose the right solution for your tank, budget and experience level.

Are your products tested and approved?

Yes. Every product in our store has gone through our personal selection and testing process . We only work with trusted brands and don't list products we don't believe in.

What payment methods do you accept?

We accept all major payment methods — credit and debit cards, PayPal, and cash on delivery for Bulgaria. All payments are secure and encrypted.

How can I track my order?

After your order ships, you'll receive an email with a tracking link. You can follow the status in real time directly through the courier's website.