Fish & Aquatic Aquarium Heaters
Fish & Aquatic Aquarium Heaters for UK pet owners — 177 products with free UK delivery. Browse the full range below; stock and prices update live.
Popular picks include hygger Aquarium Heater 300W-1000W | Submersible with Dig; HiTauing Aquarium Heater — Submersible 50W-500W with Ove; HiTauing 300W Aquarium Heater — Submersible with LED Dig.
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Overview Meet hygger's 500W aquarium heater, designed for larger tanks from 66 to 135 gallons. Whether you keep freshwater communities or reef-ready saltwater setups, this submersible heater blends dependable warmth with smart control. Its long 6.2 ft heating element and 3.9 ft power cord...
- £77.13
- £77.13
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Stable Heating Made Simple The AquaMiracle 300W Fish Tank Heater is engineered to deliver steady warmth with high precision. The integrated thermostat and LED display clearly show both the current water temperature and the desired setting, so adjusting heat feels straightforward and reliable in...
- £44.58
- £44.58
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Precision you can feel in your tank The AquaMiracle 200W Aquarium Heater is designed for stable warmth in tanks from 20 to 40 gallons. With advanced inverter technology and integrated chips, it maintains temperature with an accuracy of ±1°F, while the LED display keeps...
- £41.50
- £41.50
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Overview: compact yet capable tank warming The hygger Ceramic Submersible Heater is a 50W solution designed for 3–10 gallon aquariums. Built with explosion-proof ceramic and a sturdy ABS shell, it blends durability with efficient warmth for freshwater or saltwater setups. An external digital controller...
- £34.32
- £34.32
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Smart, safe heating for large aquariums The Orlushy 800W submersible heater is designed to keep 80–175 gallon tanks comfortably warm in both freshwater and saltwater environments. It blends robust power with thoughtful safety features to support a stable, healthy aquatic display without guesswork. Durable...
- £58.94
- £58.94
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OverviewMeet Fluval E 100W Electronic Heater, the centerpiece for dependable, responsive heating in home aquariums. Built around VueTech technology, it blends smart monitoring with a clean, intuitive interface so you can focus on observing your aquatic life rather than managing temperature swings.Dual temperature sensors...
- £67.43
- £67.43
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Overview The hygger Aquarium Heater is designed for freshwater and saltwater tanks in the 60 to 135 gallon range, available in 500W, 800W, and 1000W options to suit your setup. A built‑in danger warning automatically stops heating when needed, helping you maintain a stable...
- £77.13
- £77.13
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Overview The SEAOURA 800W aquarium heater is designed to support warmth in large tanks from 100 to 180 gallons. Its submersible design keeps the heating element fully immersed, while a temperature probe wire runs to the heating rod to monitor temperature across multiple zones....
- £63.96
- £63.96
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Overview Keep tropical, freshwater, and reef setups comfortable with a reliable heater designed for 50–60 gallon tanks. The SEAOURA 300W Aquarium Heater provides steady warmth and clear visibility through its large LED display. The unit is submersible and comes with suction cups to help...
- £52.68
- £52.68
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Reliable heating for large aquariums and ponds The AQQA Aquarium Heater 1200W is built for substantial setups, handling 170–290 gallon tanks with steady warmth that supports a thriving aquatic environment. Crafted from explosion-resistant quartz glass and high-temperature nickel-chromium, it transfers heat efficiently while standing...
- £77.89
- £77.89
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Overview The AQQA Submersible Aquarium Heater is built for both saltwater and freshwater tanks, delivering dependable warmth with a focus on safety and ease of use. Available in multiple wattages, including a robust 1200W model, it combines rapid heating with thoughtful design to help...
- £93.55
- £93.55
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Stable, Safe Heating for Larger Aquariums The Orlushy 500W submersible heater is designed to power 55–80 gallon freshwater or saltwater tanks. Its compact 9.8-inch form hides neatly inside the aquarium while delivering reliable warmth. Built to endure, the heater uses rugged quartz glass that...
- £42.53
- £42.53
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Experience dependable warmth for your aquatic environment with the Fluval M 100W Submersible Heater. Manufactured in Europe with premium components, this compact heater is designed to deliver stable, precise heat for tanks up to 30 gallons. The result is a more comfortable living space...
- £45.50
- £45.50
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Compact, Reliable Warmth for Small Aquariums Meet boxtech's 50W Small Fish Tank Heater, a compact heater designed for 3–12 gallon aquariums and even shallow turtle habitats. Its long 5.35 ft power cord offers flexible placement so you can position the heater and the external...
- £38.43
- £38.43
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Overview Hygger submersible aquarium heater is built to keep a dependable, even warmth in 40–70 gallon tanks. Available in wattages including 300W, 500W, 800W and 1000W, this heater pairs a precise temperature controller with robust safety features, making it a versatile choice for both...
- £47.81
- £47.81
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Overview Meet the hygger Marine Aquarium Heater, a titanium submersible heater engineered for dependable warmth in both saltwater and freshwater tanks. Available across wattages from 50W to 500W, it scales to your aquarium size and performance needs. The 50W variant is ideal for 10–15...
- £45.61
- £45.61
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Overview Meet the hygger 300W Aquarium Heater with Controller — a reliable, submersible heating solution designed for 40-80 gallon tanks. Whether you’re cultivating freshwater communities, saltwater ecosystems, or even turtle habitats, this heater helps you sustain a steady, comfortable warmth with a clear digital...
- £49.51
- £49.51
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Compact power for larger tanks Meet the AquaMiracle Adjustable 300W Aquarium Heater—a compact submersible warmer designed for tanks in the 40–60 gallon range. Its unusually short profile lets you tuck it behind rockwork, plants, or décor without sacrificing heating power. Despite its small footprint,...
- £41.50
- £41.50
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Overview The UPETTOOLS 50W Mini Aquarium Heater is crafted for compact tanks sized 5–10 gallons. It combines a stable nickel-chromium heating wire with silicon carbide heat conduction to warm water efficiently while helping maintain a steady temperature. The dual-mode thermostat supports a flexible 68–93°F...
- £38.43
- £38.43
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Compact warmth for tiny tanks Meet hygger’s compact submersible heater, designed to fit small glass or acrylic aquariums. It supports freshwater and marine setups and delivers stable warmth in tanks from roughly 5 to 26 gallons, with wattage options to fit your space and...
- £32.27
- £32.27
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