For autos I run 20/4 you can run them 24/7 but I find they still need a bit of a break, you also don't want to be running soil, autos prefer light airy medium, promix line is great..I run the bx..lots of people run the hp both very similar hp has more perlite, you'll also need a good nutrient line, because either of these only have mychorhaze in it..so you'll need to fees them...also 10 plants is gonna be alot of watering. One of my autos on avg is drinking 3l every 48 hrs...if yours run the same your looking at 30l every 48hrs..thats alot of water ..which you'll see is gonna be a big pain in your ass, these are bruce bannera under a sf2000 using the things I mentioned