Question about light intensity after cutting stem plants

[#1Plantboy]

I have bacopa australis and since I got it it was growing tall and lengthy. So I read you can creat a Bush out of it by cutting it down a couple nodes above the gravel. So I pruned the bacopa from growing almost to the tip of the tank down to a couple nodes above the substrate. It was going fine until I clipped it short. I am using a build my led light fixture and I have a dimmer switch turned to 80 percent. My question is after cutting the plants short should the light be increased for growth to reach closer to the substrate level?

Thanks

[mac]

What types of spectrum and Par is the LED unit??

[#1Plantboy]

It is suited for a Dutch planted aquarium of light spextrum 6300k. The par is 145