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The chart below will help you determine the best aquarium light for your tank based on:

  • the dimensions of your tank
  • whether you have a planted tank or a fish only tank (either salt or fresh)
ABOUT FISH ONLY TANKS (either salt or fresh)
When it comes to fish only tanks, very little light is required to keep your fish healthy. How much light you want really is a personal preference. The lights we recommend have somewhat typical output for hobbyists. If you want more or less, that will not be a problem with the health of your fish.

NOTE: We also have lighting charts for reef aquariums fixtures and reef aquarium retrofits. Kessil AP9X LED Aquarium Light
Aquarium Size
(length X width X depth)		Planted Tanks Fish Only Tanks
(freshwater or saltwater)
18" x 18" x 18"
21 gallon Red Sea Reefer Nano		- Kessil A160 Tuna Sun 40W

- 18-24" Aqueon OptiBright MAX LED Fixture

-Kessil A80 Tuna Blue 15W

- Kessil A80 Tuna Sun 15W

18" x 16" x 20"
20 gallons HEXAGON		- Kessil A80 Tuna Sun 15W

- Kessil A160 Tuna Sun 40W

- 18-24" Aqueon OptiBright MAX LED Fixture

-Kessil A80 Tuna Blue 15W

- Kessil A80 Tuna Sun 15W


20" x 10" x 12"
10 gallons		- TWOKessil A80 Tuna Sun 15W

- Kessil A160 Tuna Sun 40W

- 18-24" Aqueon OptiBright MAX LED Fixture

- Kessil A80 Tuna Blue 15W

- Kessil A80 Tuna Sun 15W

- 18-24" Aqueon OptiBright MAX LED Fixture

20" x 13" x 17.5"
20 Gallon Aquapod
(without lighting hood)		- Kessil A160 Tuna Sun 40W

- 18-24" Aqueon OptiBright MAX LED Fixture


- Kessil A80 Tuna Blue 15W

- Kessil A80 Tuna Sun 15W

- 18-24" Aqueon OptiBright MAX LED Fixture

20" x 21" x 18"
30 gallons CUBE		- Kessil A160 Tuna Sun 40W

- Kessil A360 Tuna Sun 90W		- Kessil A80 Tuna Blue 15W

- Kessil A80 Tuna Sun 15W

- 18-24" Aqueon OptiBright MAX LED Fixture

23" x 20" x 24"
35 gallons HEXAGON		- Kessil A160 Tuna Sun 40W

- Kessil A360 Tuna Sun 90W		- Kessil A80 Tuna Blue 15W

- Kessil A80 Tuna Sun 15W

24" x 8" x 12"
10 gallons LONG		- TWOKessil A80 Tuna Sun 15W

- 24" Fluval Fresh and Plant 3.0 32W

- 18-24" Aqueon OptiBright MAX LED Fixture



- Kessil A80 Tuna Blue 15W

- Kessil A80 Tuna Sun 15W

- 18-24" Aqueon OptiBright MAX LED Fixture


24" x 12" x 12"
15 gallons		- TWOKessil A80 Tuna Sun 15W

- 24" Fluval Fresh and Plant 3.0 32W

- 18-24" Aqueon OptiBright MAX LED Fixture


- Kessil A80 Tuna Blue 15W

- Kessil A80 Tuna Sun 15W

- 18-24" Aqueon OptiBright MAX LED Fixture


24" x 12" x 16 "
20 gallons HIGH		- Kessil A360 Tuna Sun 90W

- Kessil A360X Tuna Sun 90W

- Kessil A160WE Tuna Sun Controller Ready LED Light 40W

- 24" Fluval Fresh and Plant 3.0 32W
- Kessil A80 Tuna Blue 15W

- Kessil A80 Tuna Sun 15W

- 18-24" Aqueon OptiBright MAX LED Fixture

24" x 12" x 20"
25 gallons
- Kessil A360 Tuna Sun 90W

- Kessil A360X Tuna Sun 90W

- Kessil A160WE Tuna Sun Controller Ready LED Light 40W

- 24" Fluval Fresh and Plant 3.0 32W
- Kessil A80 Tuna Blue 15W

- Kessil A80 Tuna Sun 15W

- 18-24" Aqueon OptiBright MAX LED Fixture

24" x 15" x 21"
26 gallons BOW		- Kessil A360 Tuna Sun 90W

- Kessil A360X Tuna Sun 90W

- Kessil A160WE Tuna Sun Controller Ready LED Light 40W

- 24" Fluval Fresh and Plant 3.0 32W
- Kessil A80 Tuna Blue 15W

- Kessil A80 Tuna Sun 15W

- 18-24" Aqueon OptiBright MAX LED Fixture

24" x 20" x 20"
34 gallon Red Sea Reefer 170		- Kessil Tuna Sun LED Light 90W

- Kessil A360X Tuna Sun 90W

- Kessil A160WE Tuna Sun Controller Ready LED Light 40W

- 24" Fluval Fresh and Plant 3.0 32W		- Kessil A80 Tuna Blue 15W

- Kessil A80 Tuna Sun 15W

- 18-24" Aqueon OptiBright MAX LED Fixture

24" x 12" x 24"
30 gallons HIGH		- Kessil Tuna Sun LED Light 90W

- Kessil A360X Tuna Sun 90W

- TWOKessil A160WE Tuna Sun 40W

- 24" Fluval Fresh and Plant 3.0 32W
- Kessil A80 Tuna Blue 15W

- Kessil A80 Tuna Sun 15W

- 18-24" Aqueon OptiBright MAX LED Fixture

27" x 24" x 28"
60 gallons HEXAGON		- Kessil Tuna Sun LED Light 90W

- Kessil A80 Tuna Blue 15W

- Kessil A80 Tuna Sun 15W

30" x 12" x 12"
20 gallons LONG		- TWOKessil A160WE Tuna Sun 40W

- 30-36" Aqueon OptiBright MAX LED Fixture

- Kessil Tuna Sun LED Light 90W

- 24" Fluval Fresh and Plant 3.0 32W

- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W

- 30-36" Aqueon OptiBright MAX LED Fixture


30" x 12" x 18"
29 gallons		- Kessil Tuna Sun LED Light 90W

- Kessil A360X Tuna Sun 90W

- TWOKessil A160WE Tuna Sun 40W

- 30-36" Aqueon OptiBright MAX LED Fixture

- 24" Fluval Fresh and Plant 3.0 32W

- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W

- 30-36" Aqueon OptiBright MAX LED Fixture


30" x 15" x 21"
36 gallons BOW		- TWOKessil A160WE Tuna Sun 40W

- Kessil Tuna Sun LED Light 90W

- 24" Fluval Fresh and Plant 3.0 32W

- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W

- 30-36" Aqueon OptiBright MAX LED Fixture


34" x 24" x 21"
36 gallons CORNER		- TWOKessil A360X Tuna Sun 90W

- TWOKessil A160WE Tuna Sun 40W

- 24" Fluval Fresh and Plant 3.0 32W
- TWOKessil A80 Tuna Blue 15W

-TWOKessil A80 Tuna Sun 15W

- 30-36" Aqueon OptiBright MAX LED Fixture


36" x 12" x 16"
30 gallons		- Zetlight 33" to 39" Lancia II 895P WI-FI LED Fixture 36W

- TWOKessil A160WE Tuna Sun 40W

- TWOKessil A360X Tuna Sun 90W

- 36" Fluval Fresh and Plant 3.0 46W

- 30-36" Aqueon OptiBright MAX LED Fixture

- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W

- 30-36" Aqueon OptiBright MAX LED Fixture

36" x 12" x 20"
38 gallons		- Zetlight 33" to 39" Lancia II 895P WI-FI LED Fixture 36W


36" x 18" x 16"
40 gallons BREEDER		- TWOKessil A160WE Tuna Sun 40W

- TWOKessil A360X Tuna Sun 90W

- Zetlight 33" to 39" Lancia II 895P WI-FI LED Fixture 36W

- 36" Fluval Fresh and Plant 3.0 46W		- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W


36" x 16" x 21"
46 gallons BOW		- TWOKessil A160WE Tuna Sun 40W

- TWOKessil A360X Tuna Sun 90W

- 36" Fluval Fresh and Plant 3.0 46W


- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W


36" x 15" x 20"
50 gallons BREEDER		- TWOKessil A160WE Tuna Sun 40W

- TWOKessil Tuna Sun LED Light 90W

- TWOKessil A360X Tuna Sun 90W

- 36" Fluval Fresh and Plant 3.0 46W

- Zetlight 33" to 39" Lancia II 895P WI-FI LED Fixture 36W


-- TWOKessil A80 Tuna Blue 15W

-TWOKessil A80 Tuna Sun 15W


36" x 18" x 18"
50 gallons BREEDER		- TWOKessil A160WE Tuna Sun 40W

- TWOKessil A360X Tuna Sun 90W

- TWO 36" Fluval Fresh and Plant 3.0 46W

- Zetlight 33" to 39" Lancia II 895P WI-FI LED Fixture 36W

- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W




36" x 20" x 21"
54 gallon Red Sea Reefer 250		- TWOKessil A160WE Tuna Sun 40W

- Kessil A360X Tuna Sun 90W

- TWO 36" Fluval Fresh and Plant 3.0 46W


- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W

- Kessil AP9X LED Aquarium Light

36" x 18" x 24"
65 gallons BREEDER		- TWOKessil A160WE Tuna Sun 40W

- TWOKessil A360X Tuna Sun 90W

- TWO 36" Fluval Fresh and Plant 3.0 46W

- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W

36" x 18" x 20"
55 gallons BREEDER		- TWOKessil A160WE Tuna Sun 40W

- TWOKessil A360X Tuna Sun 90W

- TWO 36" Fluval Fresh and Plant 3.0 46W

- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W

36" x 18" x 24"
65 gallons BREEDER		- TWOKessil A160WE Tuna Sun 40W

- TWOKessil A360X Tuna Sun 90W

- TWO 36" Fluval Fresh and Plant 3.0 46W
- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W

38" x 27" x 22"
54 gallons CORNER		- TWOKessil A160WE Tuna Sun 40W

- TWOKessil A360X Tuna Sun 90W

- TWO 36" Fluval Fresh and Plant 3.0 46W


- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W


48" x 13" x 16"
40 gallons LONG		- TWOKessil A160WE Tuna Sun 40W

- TWOKessil A360X Tuna Sun 90W

- 48" Fluval Freshwater & Plant 3.0 59W



- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W

- 48-54" Coralife Seascape LED Fixture

- 48-54" Aqueon OptiBright MAX LED Fixture

48" x 13" x 20"
55 gallons		- TWOKessil A160WE Tuna Sun 40W

- TWOKessil A360X Tuna Sun 90W

- 48" Fluval Freshwater & Plant 3.0 59W


- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W

- Kessil AP9X LED Aquarium Light

- 48-54" Aqueon OptiBright MAX LED Fixture


48" x 15" x 18"
55 gallons LONG		- TWOKessil A160WE Tuna Sun 40W

- TWOKessil A360X Tuna Sun 90W

- 48" Fluval Freshwater & Plant 3.0 59W



- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W

- 48-54" Coralife Seascape LED Fixture

- 48-54" Aqueon OptiBright MAX LED Fixture


48" x 13" x 12"
60 gallons HEXAGON		- TWOKessil A160WE Tuna Sun 40W

- TWOKessil A360X Tuna Sun 90W

- 48" Fluval Freshwater & Plant 3.0 59W		- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W

- 48-54" Coralife Seascape LED Fixture

- 48-54" Aqueon OptiBright MAX LED Fixture


48" x 13" x 24"
65 gallons HIGH		- THREEKessil A160WE Tuna Sun 40W

- TWOKessil A360X Tuna Sun 90W

- 48" Fluval Freshwater & Plant 3.0 59W		- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W

- Kessil AP9X LED Aquarium Light

- 48-54" Coralife Seascape LED Fixture

- 48-54" Aqueon OptiBright MAX LED Fixture

48" x 18" x 22"
72 gallons BOW		- THREEKessil A160WE Tuna Sun 40W

- TWOKessil A360X Tuna Sun 90W

- 48" Fluval Freshwater & Plant 3.0 59W		- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W

- Kessil AP9X LED Aquarium Light

- 48-54" Coralife Seascape LED Fixture

- 48-54" Aqueon OptiBright MAX LED Fixture


48" x 20" x 21"
74 gallon Red Sea Reefer 350		- THREEKessil A160WE Tuna Sun 40W

- TWOKessil A360X Tuna Sun 90W

- TWO48" Fluval Freshwater & Plant 3.0 59W


- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W

- Kessil AP9X LED Aquarium Light

- 48-54" Coralife Seascape LED Fixture

- 48-54" Aqueon OptiBright MAX LED Fixture


48" x 18" x 24"
90 gallons		- TWOKessil A360X Tuna Sun 90W

- TWO48" Fluval Freshwater & Plant 3.0 59W		- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W

- Kessil AP9X LED Aquarium Light

- 48-54" Coralife Seascape LED Fixture

- 48-54" Aqueon OptiBright MAX LED Fixture


48" x 18" x 20"
75 gallons		- THREEKessil A160WE Tuna Sun 40W

- TWOKessil A360X Tuna Sun 90W

- TWO48" Fluval Freshwater & Plant 3.0 59W


- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W


48" x 18" x 24"
90 gallons		- TWOKessil A360X Tuna Sun 90W

- TWO48" Fluval Freshwater & Plant 3.0 59W		- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W

- Kessil AP9X LED Aquarium Light

48" x 34" x 24"
92 gallons CORNER		- TWOKessil A360X Tuna Sun 90W
- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W

48" x 24" x 25"
95 gallons WAVE		- THREEKessil A160WE Tuna Sun 40W

- TWOKessil A360X Tuna Sun 90W

- TWO48" Fluval Freshwater & Plant 3.0 59W		- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W

- Kessil AP9X LED Aquarium Light

- 48-54" Coralife Seascape LED Fixture

- 48-54" Aqueon OptiBright MAX LED Fixture

48" x 18" x 30"
120 gallons		- TWOKessil A360X Tuna Sun 90W

- THREEKessil A160WE Tuna Sun 40W

- TWO48" Fluval Freshwater & Plant 3.0 59W		- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W

- Kessil AP9X LED Aquarium Light

- 48-54" Coralife Seascape LED Fixture

- 48-54" Aqueon OptiBright MAX LED Fixture

48" x 24" x 20"
100 gallons		- TWOKessil A360X Tuna Sun 90W

- THREEKessil A160WE Tuna Sun 40W

- TWO48" Fluval Freshwater & Plant 3.0 59W		- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W

- Kessil AP9X LED Aquarium Light

- 48-54" Coralife Seascape LED Fixture

- 48-54" Aqueon OptiBright MAX LED Fixture

48" x 18" x 30"
110 gallons HIGH		- TWOKessil A360X Tuna Sun 90W

- THREEKessil A160WE Tuna Sun 40W

- TWO48" Fluval Freshwater & Plant 3.0 59W		- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W

- Kessil AP9X LED Aquarium Light

- 48-54" Coralife Seascape LED Fixture

- 48-54" Aqueon OptiBright MAX LED Fixture

48" x 24" x 24"
120 gallons		- TWOKessil A360X Tuna Sun 90W

- THREEKessil A160WE Tuna Sun Controller Ready LED Light 40W (each)

- TWO48" Fluval Freshwater & Plant 3.0 59W

- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W

- Kessil AP9X LED Aquarium Light

- 48-54" Coralife Seascape LED Fixture

- 48-54" Aqueon OptiBright MAX LED Fixture

48" x 24" x 30"
150 gallons		- THREEKessil A360X Tuna Sun 90W







- TWOKessil A80 Tuna Blue 15W

- TWOKessil A80 Tuna Sun 15W

- Kessil AP9X LED Aquarium Light

- 48-54" Coralife Seascape LED Fixture

- 48-54" Aqueon OptiBright MAX LED Fixture

59" x 20" x 22"
92 gallon Red Sea Reefer 450		- THREEKessil A160WE Tuna Sun 40W

- THREEKessil A360X Tuna Sun 90W

- THREEKessil A80 Tuna Blue 15W

- THREEKessil A80 Tuna Sun 15W

60" x 18" x 20"
100 gallons		- THREEKessil A160WE Tuna Sun 40W

- TWOLifegard Aquatics 60" Full Spectrum 40W

- THREEKessil A80 Tuna Blue 15W

- THREEKessil A80 Tuna Sun 15W

60" x 18" x 24"
125 gallons		- THREEKessil A360X Tuna Sun 90W


- TWOLifegard Aquatics 60" Full Spectrum 40W

- THREEKessil A80 Tuna Blue 15W

- THREEKessil A80 Tuna Sun 15W

60" x 18" x 30"
140 gallons		- THREEKessil A360X Tuna Sun 90W



- TWOLifegard Aquatics 60" Full Spectrum 40W

- THREEKessil A80 Tuna Blue 15W

- THREEKessil A80 Tuna Sun 15W


60" x 24" x 24"
150 gallons		- THREEKessil A360X Tuna Sun 90W


- TWOLifegard Aquatics 60" Full Spectrum 40W

- THREEKessil A80 Tuna Blue 15W

- THREEKessil A80 Tuna Sun 15W


60" x 24" x 30"
185 gallons		- THREEKessil A360X Tuna Sun 90W


- TWOLifegard Aquatics 60" Full Spectrum 40W

- THREEKessil A80 Tuna Blue 15W

- THREEKessil A80 Tuna Sun 15W


72" x 18" x 18"
125 gallons		- THREEKessil A360X Tuna Sun 90W



- TWOLifegard Aquatics 72" Full Spectrum 45W each

- THREEKessil A80 Tuna Blue 15W

- THREEKessil A80 Tuna Sun 15W


72" x 18" x 24"
135 gallons		- THREEKessil A360X Tuna Sun 90W

- TWOLifegard Aquatics 72" Full Spectrum 45W each

- THREEKessil A80 Tuna Blue 15W

- THREEKessil A80 Tuna Sun 15W


72" x 24" x 25"
155 gallons BOW		- THREEKessil A360X Tuna Sun 90W


- TWOLifegard Aquatics 72" Full Spectrum 45W each

- THREEKessil A80 Tuna Blue 15W

- THREEKessil A80 Tuna Sun 15W


72" x 18" x 30"
170 gallons		- THREEKessil A360X Tuna Sun 90W


- TWOLifegard Aquatics 72" Full Spectrum 45W each

- THREEKessil A80 Tuna Blue 15W

- THREEKessil A80 Tuna Sun 15W


72" x 24" x 20"
150 gallons		- THREEKessil A360X Tuna Sun 90W

- TWOLifegard Aquatics 72" Full Spectrum 45W each

- THREEKessil A80 Tuna Blue 15W

- THREEKessil A80 Tuna Sun 15W

72" x 24" x 24"
180 gallons		- THREEKessil A360X Tuna Sun 90W

- TWOLifegard Aquatics 72" Full Spectrum 45W each

- THREEKessil A80 Tuna Blue 15W

- THREEKessil A80 Tuna Sun 15W

72" x 24" x 29"
210 gallons		- THREEKessil A360X Tuna Sun 90W

- TWOLifegard Aquatics 72" Full Spectrum 45W each

- THREEKessil A80 Tuna Blue 15W

- THREEKessil A80 Tuna Sun 15W

72" x 24" x 30"
225 gallons		- THREEKessil A360X Tuna Sun 90W

- TWOLifegard Aquatics 72" Full Spectrum 45W each

- THREEKessil A80 Tuna Blue 15W

- THREEKessil A80 Tuna Sun 15W

96" x 24" x 24"
240 gallons		- FOURKessil A360X Tuna Sun 90W

- FOURKessil A80 Tuna Blue 15W

- FOURKessil A80 Tuna Sun 15W

96" x 24" x 24"
300 gallons		- FOURKessil A360X Tuna Sun 90W

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  • Please contact us with any questions you have.

  • [email protected]

    We answer all emails through 3 PM the same day (M-F).

  • (480) 491-5283

    Monday-Friday 9:00 am to 11:00 am & 1:00 pm to 3:00 pm MT. We will return all phone calls through 3 PM the same day.

    Note: we do not have daylight savings time in Arizona

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