I assume this is your first grow? You will not want to clip clones until the first true set of 5 prong leaves.
What are you going to be using to start your clones off?
DFG
Answer:
Yes, this is my first indoor grow.

I'm using these (1 strain per lamp):

1 - Pure Afghani: For a couch lock high (narcotic high) with a high yield
http://www.amsterdammarijuanaseeds.c...14&product_id= 323&action=show_product&curr=49

2 - ORIGINAL BIG BUD SUPER SKUNK: For the extremelly high yield:
http://shop.grasscity.com/shop/grass...eedshqbig.html

3 - White widow: For quality / yield
http://www.amsterdammarijuanaseeds.c...roduct&curr=49


What do you mean by
You will not want to clip clones until the first true set of 5 prong leaves.
You mean I will not want to top them ? This brings me to another question:

I've been an outdoor grower for a couple years and I would always top my plants twice per season before they start flowering. When should I top my plants before putting them in a 12/12 light cycle ? Would toping them while in the 12/12 damage them or slow their growth ?

so if I'm getting what you are all saying, it does not matter how many plants I have under each lamps as long as I maximise the space, the yield should be similar ... (1 gramm per watts):thumbsup: