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Lighting a 125 gallon aquarium

8.4K views 5 replies 4 participants last post by  ddiomede  
#1 ·
I've been out of the planted tank hobby for a while now. After thirty something years of keeping freshwater I had moved onto reef aquariums.

Having recently moved, my last reef aquarium was torn down with no intentions of setting it up again. The benefit of moving is that I finally have room for a big tank.

I'm planning on setting this up over time because my plan is to go high tech with this one. My last planted tank was high tech-ish and I saw really good results until I was out of town for work for almost 4 months and the tank just went downhill.

Having been out of planted tanks for a long time I know that lighting options have improved pretty drastically.

My initial impulse was to go with Kessil lights since the ones I had on my reef did so well. I figure I'd need 3 lights total to light a standard 125 gallon tank. This would put me just under two grand.

What other options are out there for lighting a 125 gallon with sufficiently high light? I'd love to have the controllability of the Kessils, but obviously wouldn't mind the costs being a little lower lol.

Any recommendations on what you'd do if you had a budget of $1500 or so? Since I'm out of touch with whatever will be recommended, if you could also share how many of the lights I'd need it would be extremely helpful.

Thanks! I'm looking forward to getting this tank going!
 
#2 ·
You have a lot of options at this price range. Is this a 5 foot tank?

That will be your biggest limiting factor if this is a 5 foot tank. A lot of light bar options are going to be for 4 foot tanks. Twinstar is an easy 4 foot recommendation. On a 5 foot you would want to hang it and center it as best you could. Not ideal but doable.

Sbreef freshwater is another option. Could use 2 of the smaller ones to get good coverage.

There are other options but I suppose we would want to know your priorities. Do you want point source lights? app control? aesthetics on the lights themselves? Etc also am I right in assuming this is a 5 foot tank?
 
#3 ·
You have a lot of options at this price range. Is this a 5 foot tank?

That will be your biggest limiting factor if this is a 5 foot tank. A lot of light bar options are going to be for 4 foot tanks. Twinstar is an easy 4 foot recommendation. On a 5 foot you would want to hang it and center it as best you could. Not ideal but doable.

Sbreef freshwater is another option. Could use 2 of the smaller ones to get good coverage.

There are other options but I suppose we would want to know your priorities. Do you want point source lights? app control? aesthetics on the lights themselves? Etc also am I right in assuming this is a 5 foot tank?
It's a standard 125 - 72"L X 18"W X 21"T

Controllability would be a great asset. I was driving a Kessil on my reef tank through an aquarium control (Apex) and it was great. I'm not planning on doing a controller so independent ability to control the lights I'd say I'd place a pretty high premium on.
 
#4 · (Edited)
AI Prime freshwaters . 4 or 5 of them .

$1348 for 5 w/ arms.

Going off the beaten path a bit Popbloom array would cost like 1/3 that amount


Other pendant/puck brands.
 
#5 ·
I was in the same boat with my 245 gal six foot tank. I stumbled on to some LED fixtures that are 68”for 209.00 with a controllable dimmer.
They offer full spectrum or you can get 8k. I am running 3 of them on a 30” wide tank that is 27” deep and having no problem growing a variety of plants. Company is in Texas and have been great to deal with. The name is 21LED USA
 
#6 ·
Thanks everyone, I appreciate all the leads on lights. When I got out of the planted tank hobby in favor of reef aquariums, LED's were just starting to become a thing in freshwater, and mainly only fish only lights. I bought a Kessil for my reef tank and loved how well it did, but didn't really keep up on new lighting over the last several years. It's shocking how many options exist today in not just the planted tank world, but also in the reef world.

Over the weekend I swung by Petsmart to pick up some dog food for my pup and they had a 125 on display. Honestly I was a bit disappointed in the dimensions. 72X18w just made is seem really long and narrow, which would make it pretty difficult to scape and have some depth.

I went back to the drawing board for tanks that were larger (100+ gallons) but at least 24" wide. I ran across the UNS 120U and while it's not as long as I'd like, it seems like it would be a good choice. I just wish it was 60X24X24. I started looking for those dimensions and found a starfire glass tank for a shockingly good price on Amazon...basically the same price as the 120U. The only problem is getting it into my basement because it weighs 300 lbs. The 120U is a lot lighter and would be easier to get down a set of stairs with a turn at the bottom. The other issue with the larger tank is it has a build in overflow, and having come recently from the reef keeping world, I'd be too tempted to set up a big reef tank again lol. I am going to set up another reef, but a smaller one since I already have all the equipment.

Anyhow thanks again for the comments. I appreciate the leads on different light manufacturers since I didn't know of any of them prior to this thread. If I wind up going with a 120U, that simplifies lighting significantly.