at what height depends on how much space you have and how long and large you want to let them veg. as for hole size i think 3-4sqin is standardHow big should be the squares in the screen ?
At what height should i install the screen?
The seeds were not free actually i got a good price from a local 40$ CAD for 15 seeds and 2 / 3 germed so im pretty happy.
As for the freebies from speedy i'm still waiting for them
MH and HPS are comparable but im pretty sure HPS (High Power Sodium) has better light penetration but uses more lightWhich is better to flower MH or HPS ?
Thanks for answering ... for my first grow and since i cant afford a HPS right now i'll be flowering with FlorosYo in regards to your MH vs HPS question. MH is commonly used for vegetative growing due to it's blue spectrum of light. HPS is commonly used for flowering due to it's red spectrum of light. You can veg and flower with either but the best results seem to come from MH/veg and HPS/flower. Some people prefer to use both red and blue spectrums during all phases of the growing
Screens and Y splitters should both be pretty cheap at your hardware store, like under $20