What do you mean by stack? The more light you add the more lumens you get, simple as that.
Now if you literally plan to put lights on top of one another I don't believe that would help...lol
The cool tube just needs air flowing through it, where you out the fan and what not is up to you. But he cooler the light the closer you can get it to your plants.
Dont buy agromax, if you look around on some forums youll see they can cause problems, look up secret jardin or ledsupply or just go to amazon.
Fans and what not depends on if you care about smell and if you can control the heat of your lights.
I have a 150w HPS light but once I move in a month or so Im going to be upgrading to a Secret Jardin DR90 which is 3ftx3ftx6ft.
I am planning on also buying another light and Im not sure if I should buy a 250w MH + HPS light and use the MH for veg then both HPS for Flowering or just go ahead and...
If I were to force my plant to herm at the end of flowering in order to get seeds would it effect the seeds I got from it and would the buds still be ok?
Thanks in advance.
Its an autoflower btw
Am I allowed to ask someone to sell me seeds that lives in the US for cheaper than if I were to purchase from a seed bank?
Or is that a no no?
My last purchase was opened but nothing was taken out as I had a magazine in there as well but Im spooked.