Marina Digital Aquarium Thermometer

A digital aquarium thermometer that mounts on the outside of the glass and reads easily

£3.49

· tracked · UK mainland estimate · 14-day promise

UK delivery £2.99 · free over £39

Secure checkout by Stripe · Card, Apple Pay & Klarna

What isn't stated

Marina do not give us a temperature range, battery type or display units (Celsius, Fahrenheit or both) for this thermometer, so check those details are what you need before relying on it for a temperature-sensitive setup.

Secure checkout

Tracked delivery

Easy returns

Easy to use, made to last

Why we chose it

An external mount means one less thing sitting inside the tank for fish to bump into or algae to grow on, and a digital readout is simply easier to check at a glance than squinting at a strip thermometer on the glass. It is a small, inexpensive piece of kit worth having on every tank.

— Matt, founder

Specifications

Type: Digital aquarium thermometer
Brand: Marina
Mounting: External, on the outside of the glass

Full description

Getting tank temperature wrong by even a couple of degrees matters more to fish than most owners expect, since many species have a fairly narrow comfortable range — which makes an easy-to-read thermometer more of a welfare tool than a nice-to-have gadget.

Marina's Digital Aquarium Thermometer is built to be accurate and easy to read, and mounts on the outside of the tank glass rather than sitting in the water. Being external, it is also removable, so it can be taken off, moved or replaced without disturbing anything inside the tank.

Digital display
Accurate and easy to read
Mounts on the outside of the aquarium glass
Removable

What isn't stated. Marina do not give us a temperature range, battery type or display units (Celsius, Fahrenheit or both) for this thermometer, so check those details are what you need before relying on it for a temperature-sensitive setup.

Who it's for: aquarium keepers who want an easy-to-read external thermometer that does not need to sit in the water, and who prefer a digital display over a strip or floating dial.

Delivery

Tracked UK delivery — your estimated arrival date is shown above and updates automatically. Standard delivery £2.99, and free on orders over £39. Full details on our delivery information page. Delivery information

Returns

14 days to change your mind, no interrogation. Items need to be unused (sensory products unopened, for hygiene). Full details on our delivery & returns page.

Payment

Secure checkout by Stripe — cards, Apple Pay, Link and Klarna. We never see or store your card details.

Common questions

Does it sit in the water or outside the tank?

It mounts on the outside of the aquarium glass rather than sitting in the water.

Is it digital?

Yes, it has a digital display.

Can it be removed easily?

Yes, it is described as removable.

What temperature range does it cover?

Not stated by Marina — no range is published to us.

How long does delivery take?

Your estimated delivery date is shown above and updates automatically. UK orders are sent tracked — standard delivery is £2.99, and free on orders over £39.

How do I track my order?

As soon as your order is dispatched we email you a tracking link, so you can follow it all the way to your door.

What if I need to return my order?

You have 14 days from delivery to change your mind. Just email us with your order number and we’ll send the return steps the same working day — see our delivery & returns page for details.

Why buy from Giddy Pets?

Carefully selected by pet ownersEvery product is chosen and quality-checked by people who actually live with dogs, cats and small pets.
Tracked delivery on every orderUK delivery with tracking as standard — and it’s free when you spend over £39.
UK customer supportReal, UK-based humans read every email — usually Matt, the founder. No bots, no ticket numbers.
Easy returns14 days to change your mind, no interrogation. If it’s not right, we’ll make it right.