AquaticLife Actinic T5 HO Lamp - 39W - 420/460nm - 36 in.

AquaticLife Actinic T5 HO Lamp - 39W - 420/460nm - 36 in.

Independently tested AquaticLife T5 HO bulbs feature an actinic phosphor for increased blue light. Each bulb is engineered to cater specifically to the biological requirements of corals. Dual actinic output combines the benefits of two bulbs in one.... more

$26.39

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Coral Sun Actinic T5 HO Fluorescent Lamp - 39W - 420nm - 36 in.

Coral Sun Actinic T5 HO Fluorescent Lamp - 39W - 420nm - 36 in.

Coral Sun T5 HO lamps give your tank blue color necessary for healthier corals with brighter output than standard fluorescent lamps. For use In HO T5 fixtures only. Made in Germany. more

$16.99

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Square Pin 55W/65W PC Compact Real Actinic Blue Fluorescent Bulb

Square Pin 55W/65W PC Compact Real Actinic Blue Fluorescent Bulb

True Super Actinic Blue 03 420nm. Excellent choice for saltwater and reef aquariums. Promotes photosynthesis essential for the health of coal and invertebrates. Intensifies the beauty and vibrant color in fish, coral and marine life. Best supplemented... more

$69.18 $44.88

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Super Actinic 420nm T-5 HO Fluorescent Tubes 24" 24W

Super Actinic 420nm T-5 HO Fluorescent Tubes 24" 24W

Very high light output T-5 fluorescent aquarium lamps Emits 420 nm, actinic blue light ideal for reef aquariums Space-saving, 5/8 inch diameter lamps emit more light than other T-5 tubes This high output fluorescent tubes emit 100% blue spectrum light... more

$13.99

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(275,000+)
Aqua Medic T-5 HO Reef Blue Actinic Fluorescent Tubes 24" 24W Reef Blue

Aqua Medic T-5 HO Reef Blue Actinic Fluorescent Tubes 24" 24W Reef Blue

T-5 actinic blue lamp for marine fish-only or reef aquariums Promotes the growth of photosynthetic corals and invertebrates Deep blue light simulates dusk/dawn conditions in your aquarium Blue T-5 High Output (HO) Fluorescent Tubes have a blue spectrum... more

$21.99

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(275,000+)
Coralife Actinic Bluelight T8 Fluorescent Lamp - 17W - 5500K - 24 in.

Coralife Actinic Bluelight T8 Fluorescent Lamp - 17W - 5500K - 24 in.

Provide your deepwater fish the wavelengths they require with this Actinic Bluelight Fluorescent Bulb. This special lamp delivers 100% blue actinic phosphor that peaks at 420 nanometers to simulate the softer shades of dusk; dawn and the blue hue of... more

$22.89

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Coralife Actinic Blue HO T5 Fluorescent Lamps 24" 24W

Coralife Actinic Blue HO T5 Fluorescent Lamps 24" 24W

Actinic blue T5 HO fluorescent lamp for marine reef aquariums Provides aquariums with actinic blue light that peaks at 420nm Promotes photosynthesis and causes aquarium corals to fluoresce Budget-friendly lamps provide vital lighting conditions for... more

$12.99 $11.69

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(275,000+)
BioCube Replacement Bulbs 24W Actinic 03 Blue

BioCube Replacement Bulbs 24W Actinic 03 Blue

Replacement compact fluorescent lamps for BioCube Aquarium Systems Coralife compact fluorescent lamps offers reliable aquarium lighting Lamps available for 8, 14, and 29 gallon BioCube Aquarium Systems Maintain healthy inhabitants in your BioCube... more

$19.99

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(275,000+)
Giesemann PowerChrome Actinic Plus T5 Lamp - 24W - 450nm - 24 in.

Giesemann PowerChrome Actinic Plus T5 Lamp - 24W - 450nm - 24 in.

PowerChrome Actinic plus T5 lamps emit a mixture of 40% actinic and 60% blue light: perfect for encouraging gorgeous bluing in SPS corals. Each bulb peaks at 450nm. Great when combined with a 10;000K or 6500K lamp. Made in Germany by Giessemann. Click... more

$20.95

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Actinic Bluelight Straight Pin Power Compact Lamp - 65W - 420nm - 21 in.

Actinic Bluelight Straight Pin Power Compact Lamp - 65W - 420nm - 21 in.

This 100% actinic 03 blue lamp peaks at 420 nanometers. It is ideal for freshwater; saltwater or reef aquariums. It stimulates dusk and dawn environment; enhances the vibrant colors of fish and invertebrates; provides beneficial blue light; which most... more

$38.59

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BioCube Replacement Bulbs 36W Actinic 03 Blue

BioCube Replacement Bulbs 36W Actinic 03 Blue

Replacement compact fluorescent lamps for BioCube Aquarium Systems Coralife compact fluorescent lamps offers reliable aquarium lighting Lamps available for 8, 14, and 29 gallon BioCube Aquarium Systems Maintain healthy inhabitants in your BioCube... more

$19.99

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(275,000+)
Coralife Actinic Bluelight T5 Fluorescent Lamp - 14W - 420nm - 24 in.

Coralife Actinic Bluelight T5 Fluorescent Lamp - 14W - 420nm - 24 in.

The Coralife Actinic Bluelight T5 fluorescent lamp provides light that mimics the soft blue light found at sunrise and sunset. It also emits the type of light that reaches down further into the ocean; to replicate the light that reaches corals and... more

$15.89

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AquaticLife Actinic T5 HO Lamp - 54W - 420/460nm - 48 in.

AquaticLife Actinic T5 HO Lamp - 54W - 420/460nm - 48 in.

Independently tested AquaticLife T5 HO bulbs feature an actinic phosphor for increased blue light. Each bulb is engineered to cater specifically to the biological requirements of corals. Dual actinic output combines the benefits of two bulbs in one.... more

$28.99

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Coralife T5 High Output Lamp - 54W - Actinic - 48 in.

Coralife T5 High Output Lamp - 54W - Actinic - 48 in.

Energy efficient T5 HO Bulbs from Coralife provide the perfect output for most aquarium applications. Actinic bulbs' emulate the blue light found at deeper depths and promote photosynthesis in corals and plants. more

$21.69

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Coral Sun Actinic T5 HO Fluorescent Lamp - 24W - 420nm - 22 in.

Coral Sun Actinic T5 HO Fluorescent Lamp - 24W - 420nm - 22 in.

Coral Sun T5 HO lamps give your tank blue color necessary for healthier corals with brighter output than standard fluorescent lamps. For use In HO T5 fixtures only. Made in Germany. more

$14.99

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Coralife Actinic Bluelight T8 Fluorescent Lamp - 32W - 5500K - 48 in.

Coralife Actinic Bluelight T8 Fluorescent Lamp - 32W - 5500K - 48 in.

Provide your deepwater fish the wavelengths they require with this Actinic Bluelight Fluorescent Bulb. This special lamp delivers 100% blue actinic phosphor that peaks at 420 nanometers to simulate the softer shades of dusk; dawn and the blue hue of... more

$22.89

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Coralife Actinic Bluelight T8 Fluorescent Lamp - 15W - 5500K - 18 in.

Coralife Actinic Bluelight T8 Fluorescent Lamp - 15W - 5500K - 18 in.

Provide your deepwater fish the wavelengths they require with this Actinic Bluelight Fluorescent Bulb. This special lamp delivers 100% blue actinic phosphor that peaks at 420 nanometers to simulate the softer shades of dusk; dawn and the blue hue of... more

$22.89

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Actinic Bluelight Straight Pin Power Compact Lamp - 36W - 420nm -16 in.

Actinic Bluelight Straight Pin Power Compact Lamp - 36W - 420nm -16 in.

This 100% actinic 420nm blue lamp is ideal for freshwater; saltwater or reef aquariums. It stimulates dusk and dawn environment; enhances the vibrant colors of fish and invertebrates; provides beneficial blue light; which most readily penetrates the... more

$27.79

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Actinic Blue Giesemann POWERCHROME T5 Lamps 80W 60" T5 lamp

Actinic Blue Giesemann POWERCHROME T5 Lamps 80W 60" T5 lamp

Enhance growth and natural fluorescence of aquarium corals with pure actinic light. Actinic Blue Giesemann POWERCHROME T5 Lamps from CoralVue emit light exclusively from the 400-510nm wavelength range to enhance the "blue proportion" of marine aquarium... more

$25.95

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(275,000+)
Coralife Actinic Bluelight T5 Fluorescent Lamp - 28W - 420nm - 48 in.

Coralife Actinic Bluelight T5 Fluorescent Lamp - 28W - 420nm - 48 in.

The Actinic 03 lamp provides a blue light in the 420 nanometer range that stimulates many pigments in organisms such as corals; fish and invertebrates; causing them to fluoresce in beautiful glowing colors. more

$24.39

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Coralife T5 High Output Lamp - 24W - Actinic - 24 in.

Coralife T5 High Output Lamp - 24W - Actinic - 24 in.

Energy efficient T5 HO Bulbs from Coralife provide the perfect output for most aquarium applications. Actinic bulbs' emulate the blue light found at deeper depths and promote photosynthesis in corals and plants. more

$18.09

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Coralife T5 High Output Lamp - 39W - Actinic - 36 in.

Coralife T5 High Output Lamp - 39W - Actinic - 36 in.

Energy efficient T5 HO Bulbs from Coralife provide the perfect output for most aquarium applications. Actinic bulbs' emulate the blue light found at deeper depths and promote photosynthesis in corals and plants. more

$20.49

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AquaticLife Actinic T5 HO Lamp - 18W - 420/460nm - 18 in.

AquaticLife Actinic T5 HO Lamp - 18W - 420/460nm - 18 in.

Independently tested AquaticLife T5 HO bulbs feature an actinic phosphor for increased blue light. Each bulb is engineered to cater specifically to the biological requirements of corals. Dual actinic output combines the benefits of two bulbs in one.... more

$21.99

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Aqualight Mini Actinic Bluelight Replacement Lamp - 9W - 420nm - 7 in.

Aqualight Mini Actinic Bluelight Replacement Lamp - 9W - 420nm - 7 in.

This replacement lamp contains True Actinic 03 blue output in the violet range that stimulates many pigments in organisms such as coral; fish and invertebrates; causing them to fluoresce in beautiful; glowing colors. Its spectrum resembles that of the... more

$11.29

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AquaticLife Actinic T5 HO Lamp - 24W - 420/460nm - 24 in.

AquaticLife Actinic T5 HO Lamp - 24W - 420/460nm - 24 in.

Independently tested AquaticLife T5 HO bulbs feature an actinic phosphor for increased blue light. Each bulb is engineered to cater specifically to the biological requirements of corals. Dual actinic output combines the benefits of two bulbs in one.... more

$23.99

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Coral Sun Actinic T5 HO Fluorescent Lamp - 54W - 420nm - 48 in.

Coral Sun Actinic T5 HO Fluorescent Lamp - 54W - 420nm - 48 in.

Coral Sun T5 HO lamps give your tank blue color necessary for healthier corals with brighter output than standard fluorescent lamps. For use In HO T5 fixtures only. Made in Germany. more

$17.99

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SunPaq Actinic Square Pin Power Compact Lamp - 65W - 460nm - 21 in.

SunPaq Actinic Square Pin Power Compact Lamp - 65W - 460nm - 21 in.

This high quality; high lumen SunPaq Actinic lamp helps to activate photosynthesis in chlorophyll A and C. Its penetrating blue hue also creates a beautiful dawn and dusk effect in your aquarium. Other features include: it has a ;enhances true colors;... more

$31.49

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Hamilton Technology Actinic Royal Blue 460nm T5 HO Bulb 24" 24W

Hamilton Technology Actinic Royal Blue 460nm T5 HO Bulb 24" 24W

Enhance colors in saltwater coral reef and fish aquariums with 460 nm actinic blue light. Hamilton Technology Actinic Royal Blue 460nm T5 HO Bulb emits light that gives aquariums an attractive deepwater blue look while supporting photosynthesis in... more

$16.99

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(275,000+)
Hamilton Technology Actinic Royal Blue 460nm T5 HO Bulb 48" 54W

Hamilton Technology Actinic Royal Blue 460nm T5 HO Bulb 48" 54W

Enhance colors in saltwater coral reef and fish aquariums with 460 nm actinic blue light. Hamilton Technology Actinic Royal Blue 460nm T5 HO Bulb emits light that gives aquariums an attractive deepwater blue look while supporting photosynthesis in... more

$19.99

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(275,000+)
Coralife Actinic Bluelight T8 Fluorescent Lamp - 25W - 5500K - 36 in.

Coralife Actinic Bluelight T8 Fluorescent Lamp - 25W - 5500K - 36 in.

Provide your deepwater fish the wavelengths they require with this Actinic Bluelight Fluorescent Bulb. This special lamp delivers 100% blue actinic phosphor that peaks at 420 nanometers to simulate the softer shades of dusk; dawn and the blue hue of... more

$22.89

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Actinic Square Pin Power Compact Lamp - 65W - 420nm - 21 in.

Actinic Square Pin Power Compact Lamp - 65W - 420nm - 21 in.

This bulb enhances the vibrant colors of fish and invertebrates; simulates dusk and dawn environments; provides beneficial blue light which most readily penetrates the water. It has a rugged construction for dependable long life. Easy to install and is... more

$50.59

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Giesemann PowerChrome Actinic Plus T5 Lamp - 39W - 450nm - 36 in.

Giesemann PowerChrome Actinic Plus T5 Lamp - 39W - 450nm - 36 in.

PowerChrome Actinic plus T5 lamps emit a mixture of 40% actinic and 60% blue light: perfect for encouraging gorgeous bluing in SPS corals. Each bulb peaks at 450nm. Great when combined with a 10;000K or 6500K lamp. Made in Germany by Giessemann. Click... more

$22.95

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Giesemann PowerChrome Actinic Plus T5 Lamp - 54W - 450nm - 48 in.

Giesemann PowerChrome Actinic Plus T5 Lamp - 54W - 450nm - 48 in.

PowerChrome Actinic plus T5 lamps emit a mixture of 40% actinic and 60% blue light: perfect for encouraging gorgeous bluing in SPS corals. Each bulb peaks at 450nm. Great when combined with a 10;000K or 6500K lamp. Made in Germany by Giessemann. Click... more

$23.95

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Pure Aquatic Square Pin Compact Fluor. Lamp - 65W - 10000K/Actinic - 22 in.

Pure Aquatic Square Pin Compact Fluor. Lamp - 65W - 10000K/Actinic - 22 in.

Energy efficient PURE Aquatic 50/50 compact fluorescent lamps illuminate your aquarium with the bright; sparkling white light of 10000k and cool; blue actinic rays to enhance colors of your fish and corals. These bulbs are Marine Biologist tested and... more

$21.99

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ATI True Actinic T5 High-Output Fluorescent Bulbs 24W 24" T5 Bulb (Mfg# ATI1117)

ATI True Actinic T5 High-Output Fluorescent Bulbs 24W 24" T5 Bulb (Mfg# ATI1117)

Enjoy amazing color effects and see your coral reef aquarium in a new light! ATI True Actinic T5 High-Output Fluorescent Bulbs produce a violet-blue light with a spectral peak at 421nm that maximizes natural coral fluorescence and make livestock colors... more

$19.95

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(275,000+)
Coralife Actinic Bluelight LED Tri-Lamp 3W LED (Mfg# 8632)

Coralife Actinic Bluelight LED Tri-Lamp 3W LED (Mfg# 8632)

Increase light output and customize light color combination of your Coralife LED Aqualight Fixture w/ LED Tri-Lamps and Lunar Blue LEDs. Coralife Actinic Bluelight LED Tri-Lamp contains 3 blue, 450nm LEDs to emit light that emulates the softer shade of... more

$19.99

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(275,000+)
Actinic "03" 48" 110W

Actinic "03" 48" 110W

A great light for invertebrates and plants because the spectral energy distribution emitted by this bulb closely aligns with that of the blue chlorophyll absorption peak achieved on photosynthesis. 100% blue spectrum with a maximum peak at 420nm. Easy... more

$14.99

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(275,000+)
Super Actinic 420nm T-5 HO Fluorescent Tubes 36" 39W

Super Actinic 420nm T-5 HO Fluorescent Tubes 36" 39W

Very high light output T-5 fluorescent aquarium lamps Emits 420 nm, actinic blue light ideal for reef aquariums Space-saving, 5/8 inch diameter lamps emit more light than other T-5 tubes This high output fluorescent tubes emit 100% blue spectrum light... more

$13.99

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(275,000+)
Hamilton Technology True Super Actinic 03 420 nm T5 HO Bulb 24" 24W

Hamilton Technology True Super Actinic 03 420 nm T5 HO Bulb 24" 24W

Actinic blue light peaks at 420 nm to promote photosynthesis essential for healthy corals and invertebrates. Hamilton Technology True Super Actinic 03 420 nm T5 HO Bulb boasts up to 60% more light output than competitive brands for superior quality and... more

$16.99

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(275,000+)
Actinic "03" 24" 75W

Actinic "03" 24" 75W

A great light for invertebrates and plants because the spectral energy distribution emitted by this bulb closely aligns with that of the blue chlorophyll absorption peak achieved on photosynthesis. 100% blue spectrum with a maximum peak at 420nm. Easy... more

$16.99

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(275,000+)

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