10's may work. If it was me I would probably run them in 15's. That is just me though
. I have had plants run out of steam when in 7's. I have never run 10's but the plants I have done the best with were in 15's. I do not run them much though due to space limitations and all the strains I try to run at once.
![Namaste :Namaste: :Namaste:](/community/styles/420style/smilies/Namaste-Smiley.gif)