Led strip spacing on heat sink

Hello all

Im building a light for seedling and some veg with some led strips with an aka zing spectral distribution. My question is, what would you recommend the spacing between the LED’s be? These will be hooked up to a dimmable drive so I can control the intensity. Here are some pics

Try the led section and give as much info as possible.
Space your lighting, amount of strips , ect.
Lot of strip builders in there.

Thanks man I thought I was in the right area. Thanks brother