Hey growmie I just checked your diary
growdiaries.com/diaries/260115-grow-journal-by-mr-rocket
for Week 2, those roots look totally fine. In DWC, it can take a minute for things to ramp up, but once those roots fully hit the water and get enough dissolved oxygen, growth usually kicks into high gear.
Your 5-minute top-feed cycle sounds good for no, just make sure the rockwool doesn’t stay soaked 24/7. A light drip rhythm helps promote early root stretch. Once the roots really drop, you can usually back off the top feed altogether.
Make sure your water temp stays around 18–20°C (64–68°F) and your air stones are giving solid bubble coverage — oxygen makes or breaks early DWC. And keep the EC nice and light early on (around 0.4–0.6), especially if roots are just poking out.
She’s looking healthy — you're doing it right. With just a little patience, she’ll start exploding with growth.
Hope that helps, shout if you need more.