Heating & Lighting

(36 results)
Top Fin® Aquarium Hinged Glass Top
7 sizes
(172)
$17.99 - $59.99
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Top Fin® Compact Aquarium Heater
3 sizes
(461)
$27.99 - $42.99
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Tetra HT Submersible Aquarium Heater
(859)
$31.99 - $36.99
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Top Fin® Floating Glass Aquarium Thermometer
(234)
$4.99
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Fluval® Plant 3.0 Bluetooth LED
4 sizes
(58)
$189.99 - $339.99
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Fluval® Submersible Aquarium Heater
(237)
$59.99 - $74.99
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Fluval® AQUASKY LED Aquarium Light - 35 Watt
(46)
$219.99
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Fluval® AQUASKY LED Aquarium Light - 18 Watt
(56)
$159.99
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Aqueon® Plant Clip-On Aquarium LED
(4)
$47.99
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Fluval® AQUASKY LED Aquarium Light - 27 Watt
(28)
$199.99
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Marineland® Visi-Therm Submersible Aquarium Heater
(239)
$49.99 - $64.99
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Aqueon® Clip-On Aquarium LED
(46)
$35.99
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Current USA Serene ColorPlus LED Light
3 sizes
(52)
$109.99 - $149.99
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Top Fin® Color-Changing LED Aquarium Light Bar
(188)
$29.99
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Aqueon Aquatic 5-Watt Flat Aquarium Heater
(51)
$19.99
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Aqueon 10-Watt Mini Aquarium Heater
(161)
$24.99
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Top Fin® Submersible Aquarium Heater
(115)
$39.99 - $51.99
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Aquael Ultra Aquarium Heater
(18)
$54.99 - $77.99
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Fluval® Marine Nano LED Light w/Bluetooth
(6)
$149.99
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Aqueon® FXT Optibright Max LED Light
3 sizes
(61)
$129.99 - $179.99
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Fluval® M-Series Submersible Heater
(150)
$49.99
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Thrive Semi-Aquatic Submersible Heater
(136)
$42.99
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Fluval® AquaSky LED Aquarium Light - 12 Watt
(30)
$139.99
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Top Fin® Aquarium LED Strip Light
4 sizes
(192)
$54.99 - $119.99
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Marineland® Hidden LED Lighting System
(126)
$86.99
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Marineland®  LED Aquarium Light Bar
(261)
$74.99
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Top Fin® Digital Aquarium Thermometer
(160)
$17.99
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Aqueon® Betta LED Light
(48)
$21.99
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Aqualighter Picosoft Lamp
(6)
$42.99
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Current USA ColorCast Accent LED Light
2 sizes
(14)
$84.99 - $109.99
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Fluval® Prism Multi-Color LED Spotlight
(18)
$59.99
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Top Fin® Flexible Nano Aquarium LED Light
(34)
$21.99
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Top Fin® Flexible Nano Aquarium LED Light
(49)
$27.99
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Top Fin® Large Strip Thermometer
(27)
$8.99
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Marina® Floating Thermometer & Suction Cup Aquarium Thermometer
(26)
$4.99
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Marina® Thermosensor Probe Aquarium Thermometer
(8)
$22.99
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Keeping your fish tank in the most suitable condition for your aquatic pals is important for their overall health and wellbeing. Making sure your aquarium has the necessary amount of light and correct water temperature is imperative to helping your fish thrive. At PetSmart, we offer a wide range of climate-control solutions, timers and lighting options designed for aquariums of every size. With submersible heaters and heater holders, reliable and accurate thermometers, LED lights and lamps, plus premium fluorescent hoods, our fish tank heating and lighting collection makes it easy to help your fish and plants live long, healthy lives.
Whether you’re looking for a fish tank heater or fish tank lights, we have it all. PetSmart offers a variety of different aquarium heating and lighting options and accessories, including:
Need something else for your finned friend or aquarium? PetSmart has you covered with a large selection of the best fish supplies, like fish foodtanks and aquariums, and so much more.
PetSmart also offers convenient shopping with curbside or in-store pickup. Need something today? We have select items available for same-day delivery in most areas powered by DoorDash. For items you purchase frequently, PetSmart has Autoship that automatically delivers the items you want to your door as often as you’d like. Check the website to see what items are eligible.