Ok, so you look like you have a superbox, or supercloset? Take a look at my grow. You need to either fill those other cups up with the rocks or cover them with tinfoil to block out the light/heat/excess plant material. All of that will cause root rot, so cover asap. You can get plugs for the other watering tubs from a hydro store or large box hardware store like lowes or home depot. I was lazy so I just filled mine with rocks. You should be top watering like 2 15min intervals a day, don't let that rockwool get dry. Next, go easy on the nutrients, when you start, do like 1/4 strength. Make sure your air stones are all the way up high (adjustable knob on top of air pump). Next, if you have a problem with heat, move air pump out the back, the tubes will just barely reach if you turn your water basin around. Next, keep an eye on the top feeding pump connection, once it gets a little slimy in there the tube slips off easily (at least it did with mine). Make sure all the tubes enter the basin in the correct spots, they like to move around when you open the basin and if you close it, it can pinch the air tubes by accident. So check those every time you lift the basin. Also you will need to do your best at emptying that basin every week and giving it more water and nutes. Get some hydroguard asap and add to your basin, it will help with root rot and high temps. Keep an eye on ph levels, and when you adjust it, do it in small amounts. I have a lot of other helpful suggestions, but this should keep you going for a while. My temps got too hot in there with the door closed, so I had to keep it open.
Good luck with your grow!
@Dustinten, I sent you a private message, you access them by clicking on the little paper airplane at bottom right (on the website), not sure about the app.
@TomatoloverBoy, try Advanced Nutes PH perfect 3 part series. It’s pretty simple to use and keeps ph 5.5-6.2 using RO water with ppm less than 100. Works well for me.