Seedling and Rockwool common sense question!

Hi, BubbleHeads I'm a newbie, so I have a simple but basic common sense question that Im kind of confused about.. After sprouting the seeds using the Paper towel germination method. Exactly how long or when can you place the seedlings into the Rockwool cube and Bubbleponics system? Can I place the seedlings into the bubbleponics system immediately after the seeds germinate, or wait until I see roots coming through out the Rockwool cube, then place it into the system?

its safer to wait till you see roots from the rockwool, but i imagine both have been done and tried to a varied success.

Ok where is the safest/cheapest location to
store the seedlings while inside of the Rockwool cube until I see roots coming out, before place it into the Bubbleponics system?

Put them in a plastic cup with some water in the bottom just a small amount to cover the bottom of the cup, check daily to make sure it has not evaporated, place under lights once they pop up & once you see roots you can place in your system make sure to place the plant with your medium deep enough in the hydrotron in an area getting good water as to not stunt the plants growth

I use the rockwoll trays with a seedling heat mat,make sure you soak the rockwool in ph adjusted water before you put your seeds in them,I put mine in as soon as I see roots, you may have to top feed until the roots make there way out of the net pot.

Weedler I think I will take that route with the plastic cups until I see roots.. I sounds pretty easy/ basic.. Because I just spent $210 bucks on 20 of Barneys farm LSD seeds, an I cannot afford to make any mistakes.. Thankz!

Fairly straight forward, you can always get a heating mat if temps drop below where you want them but I have never used a heat mat