I have a 125 gallon tank (6' long) Do I need one or two of these lights?
1792841
Depends how u want the corals to be looked like. If u want natural look then i suggest u buy 3 of them (each light can cover 2' max) u have enough light cover whole tank even sps. But royal blue wont be enough to make your corals vivid! If i were you i would buy 4 then set max blue on all and 1/4 white on all so u will have extreme colorful tank.
1917123
Hi Jennifer. I think 1 light should be good enough. I have a 150G 5x2x2 feet and I have 2 lights and it looks good. Make sure that you hang the light about 12" above the water level so it has good coverage and doesn't bleach the corals. I turned mines to 60% on both blue and white and some of my corals were bleaching badly. I then reduced it down to around 40% for both and the color return slowly and my frogspawn is loving it. Good luck.
1797492
I have these lighting up 2 dead corners in my 265 gal reef. based on where mine are placed I think you would need no more than 2. try one first holding over tank before installation to see how it works. you can always return the second if not needed. good luck.
1917820
If you have an all glass top you could get a 24, though it wouldn't be stable sitting there. Assuming you have an open tank, you can either get a 30, or 2 12" lights. The 2 12s would certainly be more costly, but might give you more control over the light output.
1027838
I only have a 29 gallon and my tank is loving the lights. My personal opinion is that it would be better to run two with a 60 gallon. Current is great though. You will love it!
1917121
One light covers 2 feet of tank get two to avoid shadows in the corners I have three on my 125gallon and they look great
1202135
I run 2 48" end to end on my 300 gallon fresh water tank---lighting is great!
1122402
Your asking my opinion and in my opinion, if I had a 125gal that was 5' long and 18"deep with a center brace. I would use 1st choice (4) 24" lights #4006 or 2nd choice (2) 48" lights #4008. This is just my opinion no actual factual data behind it.
2083846
I have one fixture on a 75 gallon tank and it is more than enough, but my tank isn't as deep as a 90 gallon would be - the water depth is probably something to consider too. I have LPS, SPS and soft corals and they are all doing well (too well in some cases). If you are only going to have fish and/or soft corals then I am sure you have plenty of light. If you have a lot of SPS all over the tank you MIGHT consider a second, but only if you have species that need a large amount of light. If I had to chose, I would buy one, then see what it looks like.
817337
I have 1 unit on my tank which is 3' wide x 2' deep x 2' high. one light is fine; the edges fall of a just a bit but for a 6' tank should be good with 2 lights. I have it set to only to 65% at the highest as the light is brighter than my old T5's.
1101336
You will need 2. They are around 13-15in long and 8-10 in wide. And about 3 in thick. They are pretty good lights buy 2 from the same person. I bought 2 and then 1 amd they are a little different. If you need anything else email me. edwardclaxton89@gmail.com.
505278
One in addition to the 4 T5s would be plenty. I have mine on a 55 and I've been thinking of getting another. It's definitely a very bright light ,but I've seen a fair amount of stretching in some of my plants. For a 90 I'd definitely want two.
1627615
assuming this is a freshwater planted tank, the good thing about hanging fixtures is you can adjust the height of the fixtures. I would saying having two would be ideal, and give an even amount of light over the entire length and depth of your tank. having only one would give you enough light in the tank under which the light is positioned. but having two would give you more even light over the entire tank. Unless you want to create different sectors of your tank for low light and high light I would use two. With two you can still create those different sections, by adjusting the height of each fixture, and also give you the ability to change different areas of the tank any time you want. assuming this is a freshwater planted tank, the good thing about hanging fixtures is you can adjust the height of the fixtures. I would saying having two would be ideal, and give an even amount of light over the entire length and depth of your tank. having only one would give you enough light in the tank under which the light is positioned. but having two would give you more even light over the entire tank. Unless you want to create different sectors of your tank for low light and high light I would use two. With two you can still create those different sections, by adjusting the height of... » Read More assuming this is a freshwater planted tank, the good thing about hanging fixtures is you can adjust the height of the fixtures. I would saying having two would be ideal, and give an even amount of light over the entire length and depth of your tank. having only one would give you enough light in the tank under which the light is positioned. but having two would give you more even light over the entire tank. Unless you want to create different sectors of your tank for low light and high light I would use two. With two you can still create those different sections, by adjusting the height of each fixture, and also give you the ability to change different areas of the tank any time you want. « Show Less
1510243
It's a general light. We got the extra light strips to add brightness and spectrum, and it's still not enough to keep the plants alive in our tank (55 gallon, 48" length). Maybe if you have a shallower tank, it might work.
1923326
It should be ok but you will need 2 of them. They don't put out a ton of light but with 2 you should be ok as they are dimmable. Or, buy just one and decide after you try it if you want another. I have an 80 gallon at work and have 3, once is only running blue and the other 2 are at 100 blue and 55 white. With a smaller tank you have to remember you have less LEDs too.
537192
You will need 2. But I will say that this has been THE BEST SOLAR LIGHT. I have bought several types and this is the best. It soaks up the light during the day and runs for about 6 hours at night.
1216380
You'll need one more if you have live plants. If heavily planted, I suggest to fill all three slots, one red and two white strips or red, blue and white. If it's a fish only tank, just the single strip that comes with the package should be enough.