Do fish tanks need lighting?

Generally speaking, it's important to have lighting in your fish tank. Lighting helps fish naturally respond to day-night cycles, which contributes to their health and well-being. Additionally, underwater plants require photosynthesis from lighting to flourish. And besides- fish tank lighting has an amazing aesthetic appeal that allows you and others to see what's inside!

What lighting is recommended for aquariums?

The aquarium lighting required varies depending on what lives in the aquarium, the aquarium size, and whether it is saltwater or fresh water. Types of bulbs to consider include LED, fluorescent, and metal halide. Consult with a local aquarium club, fish-savvy veterinarian, or fish hobbyists for advice on the best fish tank lighting for your setup. Fish tank lighting should be pleasing to the viewing eye while also providing stimulation to the fish and light for plants to perform photosynthesis.

Do LED aquarium lights cause algae?

LED aquarium lights can contribute to algae growth if left on too long. Using a timer to limit lighting to 8–10 hours per day and avoiding direct sunlight on the tank can help keep algae under control.

Is it okay to put LED lights in a fish tank?

Yes, LED lights are commonly used in fish tanks. They tend to stay cool, use less energy, and offer adjustable settings that can benefit both fish and plants.

Do fish like the tank lights on or off?

Fish generally do best with a consistent light schedule that includes both light and dark periods. Mimicking a natural day-night cycle can support their overall well-being.

Should I leave my fish tank light on during the day?

It's usually a good idea to have lights on during the day for 8–10 hours. Too much light can sometimes lead to stress or algae growth, so moderation and consistency are key.

What color light reduces algae growth?

Cooler white or green lights are sometimes thought to reduce algae growth more than red or blue lights. However, managing intensity and duration often makes a bigger difference than color alone.

Aquarium & Fish Tank Lighting - Page 3 (Free Shipping)

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Coralife Turbo Twist UV Replacement Aquarium Lamp, 18-Watt, Size 6X slide 2 of 8

Coralife Turbo Twist UV Replacement Aquarium Lamp, 18-Watt, Size 6X slide 3 of 8

Coralife Turbo Twist UV Replacement Aquarium Lamp, 18-Watt, Size 6X slide 4 of 8

Coralife Turbo Twist UV Replacement Aquarium Lamp, 18-Watt, Size 6X slide 5 of 8

Coralife Turbo Twist UV Replacement Aquarium Lamp, 18-Watt, Size 6X slide 6 of 8

Coralife Turbo Twist UV Replacement Aquarium Lamp, 18-Watt, Size 6X slide 7 of 8

Coralife Turbo Twist UV Replacement Aquarium Lamp, 18-Watt, Size 6X slide 8 of 8

Coralife Turbo Twist UV Replacement Aquarium Lamp, 18-Watt, Size 6X

Rated 4.5 out of 5 stars

11

$22.06 Chewy Price

$129.99 List Price

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Slide 1 of 7

Marineland LED Modular Pod Cool White Aquarium Lighting slide 2 of 7

Marineland LED Modular Pod Cool White Aquarium Lighting slide 3 of 7

Marineland LED Modular Pod Cool White Aquarium Lighting slide 4 of 7

Marineland LED Modular Pod Cool White Aquarium Lighting slide 5 of 7

Marineland LED Modular Pod Cool White Aquarium Lighting slide 6 of 7

Marineland LED Modular Pod Cool White Aquarium Lighting slide 7 of 7

Marineland LED Modular Pod Cool White Aquarium Lighting

Rated 2.5 out of 5 stars

2

$12.76 Chewy Price

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Arrives between Jul 19 and Jul 22

Slide 1 of 2

Aquael Leddy Slim 36W Marine 40"-48" Aquarium Lamp, White slide 2 of 2

Aquael Leddy Slim 36W Marine 40"-48" Aquarium Lamp, White

Rated 5 out of 5 stars

2

$132.86 Chewy Price

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Slide 1 of 4

ASF Proten LED Freshwater Fish Aquarium Striplight, 40 Watt, 60-in slide 2 of 4

ASF Proten LED Freshwater Fish Aquarium Striplight, 40 Watt, 60-in slide 3 of 4

ASF Proten LED Freshwater Fish Aquarium Striplight, 40 Watt, 60-in slide 4 of 4

ASF Proten LED Freshwater Fish Aquarium Striplight, 40 Watt, 60-in

Rated 5 out of 5 stars

1

$296.69 Chewy Price

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Current USA Orbit R24 LED Reef Aquarium Light

$275.94 Chewy Price

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Free 1-3 day delivery on first-time orders
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Zoo Med 420nm Actinic Coral Sun T5-HO Fluorescent Aquarium Bulb, 36-in, 39-watt

Rated 2 out of 5 stars

2

$20.87 Chewy Price

($20.87/ea) Price per Unit

$22.99 List Price

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Free 1-3 day delivery on first-time orders over $35
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Marineland LED Mod Pod Color Enhance Aquarium Lighting

Rated 3.5 out of 5 stars

2

$9.45 Chewy Price

$10.50 List Price

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Free delivery on first-time orders over $35
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Arrives between Jul 19 and Jul 22

TMC Hyperion Ultra High Performance Quartz UVC Lamp, 25-watt

Rated 5 out of 5 stars

1

$40.32 Chewy Price

$46.99 List Price

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Free 1-3 day delivery on first-time orders
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Coralife Marine Aquarium Clip-On LED Light

Rated 4.8 out of 5 stars

19

$54.95 Chewy Price

$64.99 List Price

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Free 1-3 day delivery on first-time orders
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Dennerle Nano Power-LED 5.0 Fish Aquarium Light, 5-watt

$70.29 Chewy Price

$85.00 List Price

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Free delivery on first-time orders
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Arrives between Jul 23 and Jul 26

Aquael Leddy Slim 5W Sunny 8"-11.75" Aquarium Lamp, Black

$51.99 Chewy Price

$65.91 List Price

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Marineland LED Modular Pod Aquarium Lighting

Rated 5 out of 5 stars

1

$10.17 Chewy Price

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Free delivery on first-time orders over $35
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Arrives between Jul 19 and Jul 22

AA Aquarium Green Killing Machine 3 Watt Replacement Bulb

Rated 5 out of 5 stars

6

$36.70 Chewy Price

($36.70/ea) Price per Unit

$39.99 List Price

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Free 1-3 day delivery on first-time orders
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ASF Proten LED Reef Blue Fish Aquarium Striplight, 40 Watt, 60-in

Rated 1 out of 5 stars

1

$305.29 Chewy Price

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Seapora MiniSpot LED Suction-Mounted Spot Lamp 460nm, 3-watt

$24.39 Chewy Price

$29.99 List Price

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Free 1-3 day delivery on first-time orders over $35
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Zoo Med Betta LED Light

Rated 3 out of 5 stars

4

$14.99 Chewy Price

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Free 1-3 day delivery on first-time orders over $35
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Aqua One Betta Duo Replacement LED Clamp Light

$60.00 Chewy Price

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Lifegard Full Spectrum LED Light with Mounting Bracket, Black, 5-in

Rated 4 out of 5 stars

7

$37.57 Chewy Price

$56.44 List Price

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Free delivery on first-time orders
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Arrives between Jul 21 and Jul 26

Aquaillumination Blade LED Mounting Clips

Rated 1 out of 5 stars

1

$15.37 Chewy Price

$15.59 List Price

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Free 1-3 day delivery on first-time orders over $35
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GloFish Color Changing Cycle LED Light, 5-gal

Rated 3.7 out of 5 stars

18

$37.59 Chewy Price

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Free 1-3 day delivery on first-time orders
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Aquael Leddy Slim 32W Plant 30"-40" Aquarium Lamp, White

Rated 2 out of 5 stars

1

$175.09 Chewy Price

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Free 1-3 day delivery on first-time orders
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Marineland LED Modular Pod Lunar Blue Aquarium Lighting

Rated 5 out of 5 stars

3

$7.99 Chewy Price

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Free delivery on first-time orders over $35
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Arrives between Jul 19 and Jul 22

TMC Aquarium UV Sterilizer Lamp, 25-watt

$35.99 Chewy Price

$48.59 List Price

Autoship Price

Free 1-3 day delivery on first-time orders
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ASF Proten LED Marine Fish Aquarium Striplight, 40 Watt, 60-in

$296.69 Chewy Price

Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

JBJ Aquarium 7W Peninsula Lyra LED Aquarium Light

Rated 3 out of 5 stars

2

$67.99 Chewy Price

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Free delivery on first-time orders
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Arrives between Jul 23 and Jul 26

Aquael Leddy Slim 5W Plant 8"-11.75" Aquarium Lamp, Black

$58.70 Chewy Price

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Free 1-3 day delivery on first-time orders
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Aqua One Betta Trio Replacement LED Clamp Light

$83.00 Chewy Price

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Free 1-3 day delivery on first-time orders
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Lifegard Lifegard High Output Amalgam UV Bulb, 120-Watt, 900-gal

Rated 5 out of 5 stars

1

$90.58 Chewy Price

($90.58/ea) Price per Unit

$137.30 List Price

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Free delivery on first-time orders
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Arrives between Jul 21 and Jul 26

Marineland LED Mod Pod Rgb Remote Aquarium Lighting

Rated 1.5 out of 5 stars

2

$24.99 Chewy Price

Autoship Price

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Jul 19 and Jul 22

Aquael Leddy Slim 32W Marine 30"-40" Aquarium Lamp, Black

$128.74 Chewy Price

Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Savio UVinex Replacement Transformer Bulb

$138.60 Chewy Price

($138.60/ea) Price per Unit

$198.00 List Price

Autoship Price

Free delivery on first-time orders
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Arrives between Jul 19 and Jul 22

biOrb CLASSIC MCR Aquarium Replacement Light, Gray, Large

Rated 2.5 out of 5 stars

8

$79.28 Chewy Price

$101.99 List Price

Autoship Price

Free delivery on first-time orders
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Arrives between Jul 19 and Jul 25

Aquael Leddy Slim 36W Actinic 40"-48" Aquarium Lamp, White

Rated 5 out of 5 stars

1

$166.85 Chewy Price

Autoship Price

Free 1-3 day delivery on first-time orders
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Cobalt Aquatics Pond & Landscape LED Spotlight

Rated 5 out of 5 stars

1

$65.05 Chewy Price

$89.15 List Price

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Free 1-3 day delivery on first-time orders
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Aquael Leddy Slim 32W Actinic 30"-40" Aquarium Lamp, Black

$152.43 Chewy Price

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Free 1-3 day delivery on first-time orders
Free 365-day returns

Aquael Leddy Slim 36W Plant 40"-50" Aquarium Lamp, White

$192.60 Chewy Price

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Free 1-3 day delivery on first-time orders
Free 365-day returns

Aquarium & Fish Tank Lighting

Coralife Turbo Twist UV Replacement Aquarium Lamp, 18-Watt, Size 6X

Marineland LED Modular Pod Cool White Aquarium Lighting

Aquael Leddy Slim 36W Marine 40"-48" Aquarium Lamp, White

ASF Proten LED Freshwater Fish Aquarium Striplight, 40 Watt, 60-in

Current USA Orbit R24 LED Reef Aquarium Light

Zoo Med 420nm Actinic Coral Sun T5-HO Fluorescent Aquarium Bulb, 36-in, 39-watt

Marineland LED Mod Pod Color Enhance Aquarium Lighting

TMC Hyperion Ultra High Performance Quartz UVC Lamp, 25-watt

Coralife Marine Aquarium Clip-On LED Light

Dennerle Nano Power-LED 5.0 Fish Aquarium Light, 5-watt

Aquael Leddy Slim 5W Sunny 8"-11.75" Aquarium Lamp, Black

Marineland LED Modular Pod Aquarium Lighting

AA Aquarium Green Killing Machine 3 Watt Replacement Bulb

ASF Proten LED Reef Blue Fish Aquarium Striplight, 40 Watt, 60-in

Seapora MiniSpot LED Suction-Mounted Spot Lamp 460nm, 3-watt

Zoo Med Betta LED Light

Aqua One Betta Duo Replacement LED Clamp Light

Lifegard Full Spectrum LED Light with Mounting Bracket, Black, 5-in

Aquaillumination Blade LED Mounting Clips

GloFish Color Changing Cycle LED Light, 5-gal

Aquael Leddy Slim 32W Plant 30"-40" Aquarium Lamp, White

Marineland LED Modular Pod Lunar Blue Aquarium Lighting

TMC Aquarium UV Sterilizer Lamp, 25-watt

ASF Proten LED Marine Fish Aquarium Striplight, 40 Watt, 60-in

JBJ Aquarium 7W Peninsula Lyra LED Aquarium Light

Aquael Leddy Slim 5W Plant 8"-11.75" Aquarium Lamp, Black

Aqua One Betta Trio Replacement LED Clamp Light

Lifegard Lifegard High Output Amalgam UV Bulb, 120-Watt, 900-gal

Marineland LED Mod Pod Rgb Remote Aquarium Lighting

Aquael Leddy Slim 32W Marine 30"-40" Aquarium Lamp, Black

Savio UVinex Replacement Transformer Bulb

biOrb CLASSIC MCR Aquarium Replacement Light, Gray, Large

Aquael Leddy Slim 36W Actinic 40"-48" Aquarium Lamp, White

Cobalt Aquatics Pond & Landscape LED Spotlight

Aquael Leddy Slim 32W Actinic 30"-40" Aquarium Lamp, Black

Aquael Leddy Slim 36W Plant 40"-50" Aquarium Lamp, White

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