I do not know about carpeting plants, but it should definitely light things up depending on how much you use. How tall is the tank?

 

There are literally 100's that will add light (all add some.)

Is there something (besides the carpeting plants) that you want?
Color change or just power?
Warm the tank look or cool it?

also what size? There are some pretty decent hard strips..
https://www.amazon.com/Rextin-10pcs...f=sr_1_4?s=hi&ie=UTF8&qid=1515347283&sr=1-4&keywords=5630+rigid+led+strip+white

https://youtu.be/L6e5Ylr3EPg
https://youtu.be/VmJa-JtVi5Q
https://www.superbrightleds.com/mor...m-length-quad-row-led-tape-light-with-132-smds-per-ft-1-chip-smd-led-2835/3616/

 

Actually I found some rather inexpensive LED strips (RGBW) that I can adhere to the lid of the tank. I don't have the dimensions on me, but they can easily be found online. It's a tank that came out just last year. This is going to be a challenge and I'll try to post pictures of progress as I do it and let you guys know how it went. This is what I got.

https://www.amazon.com/dp/B00N8PQH8...=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9012240&hvtargid=pla-304537631166

 

I am setting up the 15 gallon flex. I plan on getting a strip of 5050 rgb and a strip of 5630 white led strips. Have you done any light mods yet?

 

so how did your modification work. Any tips. I am thinking about doing something similar.

 

From:
http://www.plantedtank.net/forums/22-planted-nano-tanks/1256354-9-gallon-fluval-flex.html

Now I'm not saying it's not possible to do the led flexible light strip thing, it just didn't work for me.
If I had found the hi rez picture and tried to follow the path and realized some parts had to stand on end etc. I might have been ok.
I mean, you can get a lot of lights in there for cheap, but just knowing how frakkedup my job was under there got to my OCD.
It was more expensive to get the Hagen/Fluval parts. I bought the lamp assembly and the power supply for $53.97 total.
LED Lamp assembly for FLEX 9 US Gal | A14763 | Replacement Parts | Fluval
Power Supply for LED Lamp on FLEX 9 US Gal | A14764 | Replacement Parts | Fluval
I think if the page doesn't show the price they may be out of stock, not sure.
I used aquarium silicone glue and glued the control in upside down as I didn't want to drill a hole in the top.
I just lift the top and shoot the beam from the original remote under there to control the second light.
It appears to all be watertight even upside down.
I'm sure there are other solutions, but here's how I did it.