First Grow on 3D printed Aeroponic tower

Hey brother I love your style. That tower step is cool. The towers you can buy at the store cost as much as a car lol. just stopping by to offer some unsolicited advice. I think you had a couple basic things go wrong here that are easily fixed for your next grow. 1st, cover everything with reflective material. Consider printing in black material and then painting it white. Then you block out light and reflect. Rockwool holds a lot of moisture. If you use it for aero you have to use really long timing gaps. Its also prone to growing algae on top as you have experienced because it is almost always moist. I just use neoprene collars (typical aero plugs). Next, your grow container needs a pretty good seal. Not airtight, but not wide open. Not only does it expose to the light, but also creates additional humidity in the room very fast. I would build the chamber a bit bigger too, at a certain point your roots will engulf the whole chamber and not get optimal spray. It will still be good, but not great. plants will start fighting for root space as well. That's why you see a lot of these slim tower grows with small veg plants like lettuce. Anyways, you really had it going on until you ran into the light and root issues. This is 100% typical for new hydro growers. I've destroyed several grows in the past, don't be discouraged. Hope to see you knock it out on round 2. Let me know if you have any questions.