As everyone knows, the seedling stage is a bit boring. Double black sprouted and took off from the rest. At the beginning of the week she was 2.25" with her first set of true leaves and finished the week at 3" with her second set of leaves with the 3rd set forming at the apical meristem.
Now that my girls are going strong, for the next 2-3 weeks I'll slightly extend the intervals between watering to promote root growth. The goal is to have them root bound in their final pots to accommodate multiple feedings per day.
Why not just go right in to the 3gal pots?
I do and its very nice not to worry about transplant.
I'm even dialing in how much water to give each week pretty nicely
@MrHightimes, I grew 6 autos right before this grow and planted them straight into the 3 gallon buckets. Because they didn't take much water for the first month I ended up with a lot of salt build up that caused issues before I could identify and correct.
I figured, the solo cups would allow me to water to runoff and avoid the build up.
I'm about to try some Megacrop here soon.
My friends are growing some pretty plants with it
my 9 part GH does nice but its ALOT and the ppm is so high!
@MrHightimes, Megacrop is great but keep some extra calcium and Epsom salt on hand if you're using RO water.
If you haven't ordered yet, I would suggest getting the 2 part MC so you can reduce N levels and up PK during the later stages of flower.