Welcome to BAR - the Bay Area's premier saltwater hobbyists hub!

Using solar mounting rails for light hanging.

Supporting Member
Joined
Nov 25, 2025
Messages
107
Hi all,
Extruded aluminum has been a real game changer in the marine aquarium hobby, light weight, non corrosive, and strong!

Also unusually expensive for what it is.

Recently I put solar on my home. I did it myself and learned a lot about a lot. One of those things was solar mounting rails which are made of, you guessed it, extruded aluminum. And what else is really cool, a 14 foot rail costs about 20 to 40 bucks.

I would not try to build a stand for an aquarium with them but I did use it to mount my lights!

There are many brands with slightly different shapes. 1 thing they share in common, is they have a t slot on at least 2 sides some more.

I chose the iron ridge x10 rails for my project. Because my local supplier had in stock ( they are also holding my solar to the roof).

You will likely need access to a 3d printer to make an attachment for the lights. Connecting the rails a simple L bracket will work.

Mine are bolted to a floating canopy, but one could make frame with the rails if they prefer the look of exposed lights. If I were to do that I'd slice the rails at a 45 and use an L bracket in the corners.

PXL_20250720_234916698.jpg
PXL_20251117_013225840.jpg
PXL_20251117_012839272.jpg
PXL_20251117_012831215.jpg


Let me share some pictures.
 

Attachments

  • PXL_20251117_012902350.jpg
    PXL_20251117_012902350.jpg
    91.8 KB · Views: 83
Moderator
Joined
Jun 11, 2008
Messages
3,854
I also built my own diy solar system. I did 28 panels for 9kwh, 7.6 inverter and 18kwh batteries. Unfortunately I don’t have great sun like where you live but it’s still decent.
Gotta love free energy.
Oh I used uni-strut and 2x4’s. A crap load of L brackets.
 
Supporting Member
Joined
Nov 25, 2025
Messages
107
I also built my own diy solar system. I did 28 panels for 9kwh, 7.6 inverter and 18kwh batteries. Unfortunately I don’t have great sun like where you live but it’s still decent.
Gotta love free energy.
Oh I used uni-strut and 2x4’s. A crap load of L brackets.
I'm about a mile away from the ocean so I do get fog most mornings until about 10 am. But yes The not having a $600 bill has been great. It's what caused me to buy a too big aquarium...lol

My system is close in size a little smaller. I have 22x 470 watt jinco panels and 2x 14k batteries.
At some point I will add a small natural gas generator to truly never be out of power. But that's down the road a little bit.
I have a hybrid inverter so all of my transferring happens automatically in a few milliseconds. We lost power for half in the evening in my neighborhood in August and I didn't notice until my neighbor texted me.
 
Guest
Joined
Dec 27, 2025
Messages
1
Hi all,
Extruded aluminum has been a real game changer in the marine aquarium hobby, light weight, non corrosive, and strong!

Also unusually expensive for what it is.

Recently I put solar on my home. I did it myself and learned a lot about a lot. One of those things was solar mounting rails which are made of, you guessed it, extruded aluminum. And what else is really cool, a 14 foot rail costs about 20 to 40 bucks.

I would not try to build a stand for an aquarium with them but I did use it to mount my lights!

There are many brands with slightly different shapes. 1 thing they share in common, is they have a t slot on at least 2 sides some more.

I chose the iron ridge x10 rails for my project. Because my local supplier had in stock ( they are also holding my solar to the roof).

You will likely need access to a 3d printer to make an attachment for the lights. Connecting the rails a simple L bracket will work.

Mine are bolted to a floating canopy, but one could make frame with the rails if they prefer the look of exposed lights. If I were to do that I'd slice the rails at a 45 and use an L bracket in the corners.

View attachment 75199View attachment 75202View attachment 75200View attachment 75203

Let me share some pictures.
This is a really clever idea. Those solar rails are strong, lightweight, and way cheaper than aquarium-branded extrusions. Great tip on using T-slots and simple brackets—nice crossover from the solar world into the reef hobby.
 
Supporting Member
Joined
Nov 25, 2025
Messages
107
This is a really clever idea. Those solar rails are strong, lightweight, and way cheaper than aquarium-branded extrusions. Great tip on using T-slots and simple brackets—nice crossover from the solar world into the reef hobby.
I like sharing stuff like this, because there's almost always a more cost effective solution but finding them is the challenge.
 
Past President
Joined
Mar 26, 2010
Messages
18,871
I like sharing stuff like this, because there's almost always a more cost effective solution but finding them is the challenge.
Do you think it would work to attach a rig made like this to the back of a stand and have it hang out over the tank rather than hanging from above? I have done that with the metal electrical conduit before and been happy with the result
 
Supporting Member
Joined
Nov 25, 2025
Messages
107
I'm sure it's possible. There are two slots typically in a solar mounting rail. One on the top and one on the back. If you could find a way to attach the t-bolt to whenever you are using from the back of the tank, I'm sure it would work.
 
Top