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Monday 9am - 5pm Tuesday 9am - 5pm Wednesday 9am - 5pm Thursday 9am - 5pm Friday 9am - 5pm

iQuatics

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iQuatics Online is the UK’s leading supplier of aquarium lighting products. iQuatics Online prides itself on customer service.
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iQuatics - Aquarium Lighting, Halide and T5 Specialists - iQuatics have many years of experience in the production, distribution and support of aquarium lighting products including Metal Halide Bulbs, T5 bulbs, Juwel Compatible T5 Fluorescent Bulbs,T5 T8 Formed by industry veterans, everyone at iQuatics Online has many years of experience in the production, distribution and support of lighting products including halide bulbs, T5 bulbs and aquarium lighting kits. You will never get through to a faceless call centre and everyone who works at iQuatics Online is as passionate about our products as you are about using them. We strive to constantly develop new and innovative products to help you get the most enjoyment out of your aquarium as possible.

01/11/2026

Sunday maintenance tip 🧽

Never rinse your biological filter media under the tap! The chlorine and chloramine in tap water can wipe out the beneficial bacteria that keep ammonia and nitrite in check.

Give it a gentle swish in old tank water from your water change instead. Our article on Bio-Pure Rings explains why that bacteria colony matters so much 👇

31/10/2026

Happy Halloween 🎃👻

Ever noticed how a reef tank looks properly otherworldly when only the blues are on? That eerie glow is actinic light at work. Corals fluoresce under it, which is why so many reefers run their blues for a while either side of the main photoperiod.

So, which fish in your tank looks the spookiest after dark? Our vote goes to a pleco peering out from the bogwood 👀 Tell us (or show us) in the comments!

Fancy a bit more glow? Our T5 range includes Blue Plus and actinic tubes 👇

31/10/2026

Weekend aquascaping project? 🪨

iQuatics Dragon Rock is hand-selected natural rock with that craggy, textured look that makes a hardscape. It comes in 1kg to 25kg boxes, so it works for nanos right up to big display tanks.

Got questions about using it? Our Dragon Rock Q&A covers the common ones (it's on the site too).

30/10/2026

Tank photos wanted! 📸

We're putting together a customer tank roundup and we'd love yours in it - marine, tropical, planted, coldwater, nano or a 6ft monster.

Drop a photo in the comments and tell us a bit about the setup. First names only unless you say otherwise 🙌

30/10/2026

T5 fluorescent or T5 LED? It's one of the questions we get asked most 🤔

Both have their place. LED is the newer tech, but T5 fluorescents still have some real advantages that keep them in plenty of the best tanks we see. We've laid out the pros of each so you can choose what suits your setup.

https://www.iquaticsonline.co.uk/t5-fluorescents-vs-t5-led/

30/10/2026

Got a Juwel MultiLux? You can swap to LED without changing the whole unit 💡

Our Juwel MultiLux-compatible LED tubes come in Tropical (a warm, sun-like 4500K spectrum for planted and community tanks) and Blue Plus, in 13W, 16W, 19W, 23W and 25W lengths.

Find your size 👇

https://www.iquaticsonline.co.uk/product-category/led-t5-tubes/

29/10/2026

We love hearing from long-time customers ❤️

"Great value for money salt. I've been using it a few years in both fish only (with live rock) and mixed reef with great success. Mixes well, delivered fast. I'll be ordering more again soon." — Mark, Ocean Reef Pro Coral Salt

Thanks Mark! 🌊🐠

https://www.iquaticsonline.co.uk/product/iquatics-ocean-reef-pro-coral-aquarium-salt-10kg-refill/

29/10/2026

Mixing up salt this weekend? 🌊

iQuatics Ocean Reef Pro Coral Salt is a high-quality synthetic mix designed to replicate natural seawater as closely as possible. Available in 10kg and 20kg, as a bucket or a refill bag so you can reuse the bucket.

We've also written up the science behind why salt quality matters, so have a look on the blog if you're curious.

https://www.iquaticsonline.co.uk/product-category/aquarium-salt/

29/10/2026

Reefers, how are your calcium and alkalinity looking this week? 🪸

Calcium is a crucial building block for corals and many other organisms in a reef tank, and alkalinity is what keeps your pH in that 8.0–8.4 sweet spot. Our guide explains how the two work together and why keeping them stable matters.

https://www.iquaticsonline.co.uk/understanding-calcium-alkalinity/

28/10/2026

Be honest, what's your algae nemesis? 😩

🟢 Green spot algae
🟤 Diatoms
🔴 Cyano
🌿 Hair algae
⚫ Black beard algae

Tell us in the comments and what finally worked for you. If you're still fighting it, our guide to controlling algae is a good place to start 👇

https://www.iquaticsonline.co.uk/controlling-algae-aquarium/

Address

50 Broad Street
Leek
ST135NS

Opening Hours

Monday	9am - 5pm
Tuesday	9am - 5pm
Wednesday	9am - 5pm
Thursday	9am - 5pm
Friday	9am - 5pm

Telephone

+448452697417

Website

https://www.iquaticsonline.co.uk/

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