stupid

Hi all, I currently have 2 mars hydro led lights I am using now.. I am looking to add some supplemental lighting. Can a person use the 4ft led lights like you would hang in your garage? Stupid question maybe, I didn't know if the color would be right or if that mattered? Thanks in advance!

OBLEM PLEASE HELP 5 weeks into flower .. Made a huge mistake and think I have completely fcked it ! :( I have 6 plants under a 400hps in a grow tent. Started out in my wardrobe under a CFL. Vegged for ages and then moved them into the tent under the new light and roughly 5 weeks ago did the...

This may be a stupid question but I'm about to start a second grow and would like to know the correct way to water a seedling the last time while it was in a cup I used another cup to water and killed two seedlings don't want to do that again and also while germinating will peroxide help in...