Hydroholic

Hey I see your username and your reaction score, so I think you can help me
I just ran out of ph down and I'm going to use pool ph down before GH ph down gets here. Bad idea? what would you do?

Im at the stage where I need to use the root booster. It says 2 ml/l but im lost as to how much each plant is supposed to get and how much.Can you help with that?

Ive been using a Red/Blue led grow light so I could put my tent up. While the plants were under those lights they grew about 1 to 1 1/2 in. Now that Im ready to put them in the tent will switching lights hurt them? And do I use the fans right away or do I wait until the plants get bigger? Sorry if im bothering you with these questions but finding 1 reliable source is better then 20 unreliable.

When it comes to the color of the fabic pots does it matter if its white or black? Theres no blacks pots available just white pots.