PeeJay, that is impressive growth rate for 10, 15, & 25 days. As good as I've seen on 420.
Raiven, you've put a fair amount of faith in me by listening to my advice about a soil growing medium. That makes it worth while for me to spend a little time explaining some things I've learned in detail instead of with short answers.
You were successful at germinating your seeds. On the other hand, you've sort of failed at achieving a few of the important plant structural qualities prized by those who grow in limited spaces. What you want to do down the road is limit the initial stretch and encourage tight node formation so you end up with a squat little bush instead of a lanky plant.
I've used rapid rooters before and didn't care for them. I like to soak the seeds and plant them between 1/2 and 3/4 inch deep into a lean well drained soil before they even split open and show a root. The same method works well if you use the paper towel method and get a little root before you drop it in the soil.
The planting depth is very important. If you plant too shallow the seedling will not shed it's seed coat before it breaks ground. It grows up like crazy until the seed coat is shed and the cotyledons open. As the seed coat moves up through the soil friction particles drag against it and pull it off. All you have to do is make sure the soil is moist. Measure 3/4 of an inch on the tip of a pencil or something and use it to make a hole to drop the seed in. You just leave them in a warm place and they sprout in a couple of days.
Notice that this seedling just breaking ground has already lost it's seed coat. That's what you want.
I leave the sprouting pots on top of the fridge where it's pleasantly warm until they sprout or I put them right under the lights and mist the top of the soil once or twice a day.
You want the plants right under cfl or fluorescent lighting - like 2-3' above the top of the plant. That plays a big role in keeping the plant short right out of the gates. It won't burn them.
As the plant grows up I adjust the plant downwards. I find it is much easier to move the plant down than raise lights so I set the pot on a stack of old books or something and simply remove a book when the plant is getting too close. So long as they have an inch or so of clearance they are fine. I keep the young plants very close to the light until they are 30 days old or so. I take them out from under the cfls into the greenhouse to take pictures and that's it. If you put them in the sun they will also stretch aggressively.
These are 10 days out of the ground. They are in the same soil you'll be using in the future and grown under cfls.
The same plant at 15 days.
At 25 days
By starting the plants out carefully you will get the most out of your limited space.