I think it will be fine. 1 wpg in a tank over 100 gallons is a lot of light.

cw wrote:

The reason behind all this is I have this 5' tank from my previous Discus
adventure . The PL set was from my current reef tank which I had just
upgraded to MH . Not wanting to let all these equipment go to waste , I
thought of why not a planted tank . Since I'm not planning to spend another
fortune setting up another tank , look like I will have to put the idea to
rest for a while . Thanks the help guys .