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T5 Aquarium Lighting Fixtures
(Replacement Bulbs & Replacement Parts)


T5 Aquarium Lights by Length:
T5 Fixtures: 18" & 20"
T5 Fixtures: 24"
T5 Fixtures: 30"
T5 Fixtures: 36"
T5 Fixtures: 48"
T5 Fixtures: 60"
Useful Links (to help choose the best aquarium light for your situation):
Planted & Fish Only Tank Lighting Chart
Reef Aquarium Hood Lighting Chart
T5 Replacement Bulb Chart
Reef Aquarium Retrofit Lighting Chart
Article on T5 Aquarium Lighting (bottom of page)
T5 Fixtures: AquaticLife Marquis T5 Fixtures: Coralife Aqualight Freshwater HO
For Reef & Saltwater Aquariums
Lamps: High Output T5
The AquaticLife Marquis is a 2 lamp T5 HO marine fixture with a built-in timer.
For Freshwater Planted Aquariums
Lamps: High Output T5
The Coralife Aqualight High Output T5 FRESHWATER Fixtures provides significantly more light than conventional fluorescent systems. The Coralife Aqualight High Output T5 Fixtures are an excellent choice for freshwater aquariums.
T5 Fixtures: Coralife Aqualight HO SALE!! T5 Fixtures: Coralife Aqualight NO
For Reef & Saltwater Aquariums
Lamps: High Output T5
The Coralife Aqualight High Output T5 Fixtures provide significantly more light than conventional fluorescent systems. The Coralife Aqualight High Output T5 Fixtures are an excellent choice for saltwater or reef aquariums.
For Fish Only Freshwater & Saltwater Aquariums
Lamps: Normal Output T5
These Coralife Aqualight T5 aquarium lighting fixtures use normal output T5 bulbs and are recommended for use with fish only tanks.
T5 Fixtures: Coralife Lunar Aqualight Freshwater T5 SALE!! T5 Fixtures: Coralife Lunar Aqualight T5 SALE!!
For Freshwater Planted Aquariums
Lamps: High Output T5
The Coralife Freshwater Lunar Aqualight T5 Aquarium Lighting Fixtures combine two Colormax and two 6700K high output T5 lamps with directional moonlight LEDs—making this the perfect light for freshwater planted tanks.
For Reef Aquariums
Lamps: High Output T5
The Coralife Lunar Aqualight T5 Aquarium Lighting Fixtures combines two daylight and two actinic high output T5 lamps with directional moonlight LEDs—making this the perfect light for saltwater and reef aquariums.
T5 Fixtures: JBJ Trinity SALE!! T5 Fixtures: WavePoint T5 SALE!!
For Reef Aquariums
Lamps: High Output T5
The JBJ Trinity T5 HO aquarium lighting fixture combines four T5 HO lamps and LEDs. The Trinity features the Flip Top Stand, which allows you to flip the light up—making it easy to access your tank.
For Reef & Saltwater Aquariums
Lamps: High Output T5
The Wave Point High Output T5 2-Lamp & 4-Lamp Aquarium Lighting Fixtures are innovative and solidly built fixtures with unique safety features, such as the GFCI Plug. These fixtures are appropriate for reef aquariums. The T5 lamps are energy efficient and the lack of a fan ensures this fixture will run silently.
T5 Retrofits: AquaticLife Ballast Kits SALE!! T5 Retrofits: Hagen Glo
For Saltwater & Freshwater Aquariums
Lamps: High Output T5
The AquaticLife T5 HO Ballast Kits come in two lamp & four lamp 24W, 39W and 54W versions. Reflectors and lamps are not included. You can use any type of T5 HO lamps with these Ballast Kits.
For Saltwater & Freshwater Aquariums
Lamps: High Output T5
With the Hagen Glo T5 HO Retrofits you purchase the ballasts, bulbs and reflectors independently. This gives you maximum flexibility to put a together a system that fits your canopy and coral needs.
T5 Retrofits: WavePoint SALE!! T5 Parts: AquaticLife
For Reef Aquariums
Lamps: High Output T5
The WavePoint T5 HO 4-Lamp Aquarium Retrofit Kits are innovative and solidly built fixtures with unique safety features, such as the GFCI Plug. The reflector can be screwed into the underside of an aquarium canopy. Although the end caps are water resistant the WavePoint Retrofit should only be used over a covered tank.
Replacement ballasts, leds, fan, frame mounts, timers, sockets, lens covers & transformers
T5 Parts: Coralife T5 Parts: WavePoint
Replacement ballasts, fans, leds, transformers, mounting legs and end panels
Replacement ballast, LED transformers and mounting legs
T5 Lamps (bulbs): AquaticLife T5 Lamps (bulbs): Arcadia LED T5 HO Lamp (Bulb) Replacements SALE!!




T5 Lamps (bulbs): Coralife High Output T5 Lamps (bulbs): Coralife Normal Output




T5 Lamps (bulbs): Giesemann T5 Lamps (bulbs): Giesemann (New Style)




T5 Lamps (bulbs): Hagen T5 Lamps (bulbs): Red Sea




T5 Lamps (bulbs): TrueLumen T5 Lamps (bulbs): WavePoint SALE!!




T8 Lamps (bulbs): Coralife Fluorescent Parts: Ice Cap





T5 Aquarium Lighting General Info
Fluorescent aquarium lights come with T12 lamps (1.5" diameter), T8 lamps (1" diameter) or T5 lamps (5/8" diameter). Compact fluorescents are also, as the name implies, a type of fluorescent light—but we put them all in their own Compact Fluorescent Lighting Section. Many of our metal halide lights also come with fluorescent lamps—usually actinics.

T5 Lamp Aquarium Lighting
T5 aquarium lights have become extremely popular in the past couple years. When run with an electronic ballast, which all of our T5 HO lights use, T5s are said to be more energy efficient, longer lasting and cooler running than other types of aquarium lights. Because the lamps are thin, they will penetrate the water better than thicker compact fluorescent and other fluorescent types of bulbs. T5s are a great choice for deeper tanks.

The T5 bulbs are either normal output (NO) or high output (HO). Normal output T5 fluorescents are low wattage and should only be used for fish only tanks. We carry the following normal output lights:
High output lamps are higher wattage and can be used for lighting reef aquariums and planted tanks. The following lights can be used for reef aquariums:

To choose the best light for your reef aquarium please visit the Reef Aquarium Hood Lighting Chart and the Retrofit Lighting Chart.

These T5 lights are appropriate for freshwater planted tanks:

We also have a Lighting Chart for Freshwater Planted Tanks & Fish Only Tanks

We carry a wide variety of T5 replacement lamps.

When purchasing replacement lamps you should keep in mind that with fluorescent lamps the length and the wattage go hand-in-hand. For example, you can't use a 54W T5 HO lamp to replace a 39W T5 HO lamp because the lamp is 10 inches longer. The ballast will also not run the higher wattage lamp.

Fixtures & Retrofits
All the above listed T5 lights are described as either retrofits or fixtures. If your aquarium has a canopy (usually a wood box cover), you'll need to purchase a retrofit. The WavePoint Retrofits come complete with the bulbs mounted to a reflector—you just need to screw the reflector to the canopy. The Aquatic Life T5 HO Retrofits are a-la-carte retrofits—you can purchase the ballasts, reflectors and lamps separately.

T8 & T12 Lamp Aquarium Lighting
We no longer carry T8 and T12 aquarium lights. Although these are still common in fish only tanks, most of our lights are geared toward reef tanks and planted tanks.
Fluorescent Lamp Color Temperature
Reef tanks require half the lighting to be actinic lighting and half the lighting to be full spectrum daylight lighting. For the actinics any bulb listed as an actinic —whether it is a True Actinic, 7,100K Actinic, Actinic or 420nm Actinic—will be adequate. For the daylight bulb the best bulb for corals is the 10K (aka 10,000K) bulb. 6,700K, 8,800K, 12,000K, 14,000K & 20,000K bulbs are also fine.

Freshwater planted tanks usually use the 6,700K, 6,500K or 5,500K bulbs. Fish only tanks can use any light that makes the fish look good. The fish really don't need much light to survive—so it is really a matter of aesthetics. Most people will be happy using 6,700K bulbs, which are very close to daylight, for fish only tanks.