This looks like it is keeping the RW plug saturated. Bad rice! This will kill the plant! If that tubing through the side of the netpot is pumping water into the rootzone area, take it out! It's not only not needed but will cause BIG problems!

If you want to do an aero or DWC, drop that water level and put an air stone in the bottom of the tank. Bubbles breaking the surface will create a mist which will dampen the pellets but not the RW.

The RW plug should not go into the pellets until there are appreciable amounts of roots coming out of the bottom of the plug. The roots will find the damp pellets in a week or so. .

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Get a harvest every 2 weeks - A batch of clones in rockwool - Al B. Gone