I use AACT, but start my plants on 1-1-1 fert, and CalMag+.
http://generalhydroponics.com/site/index.php/products/general_organics/bio_root2/
http://www.botanicare.com/Cal-Mag-2-0-0-P48.aspx
I know they are not from the same vendor. I just like this combo. It has worked for me.
5ml of 1-1-1 fert to a gallon of RO water. (1st watering)
Let soil dry out (could take a couple of days).
5ml of CalMag+ to a gallon of RO water. (2nd watering)
Let soil dry out (could take a couple of days).
1 gallon of RO water. (3rd watering)
Let soil dry out (could take a couple of days).
Then start back with number 1 watering cycle or AACT mix.
Between each cycle I let the peat moss & pearlite dry out. But don't kill the plant.
I have had good luck with my seedlings with this. Once they get there first true leaves, I give them AACT diluted down. 2 parts water to 1 part AACT.
I will post some pics.
Here are some of my pics of current seedlings.
This is my first set started mid Jan.
Here is another set started mid Feb.
Here is my AACT setup.