Dude you guys are str8 bullshyt... I havnt changed my water in like weeks... and i got like God Like Fukin Bushes!!! HUGE BEEZIES
Sure, I guess that your plants might live without nutes, but don't bother.
I rarely feed a plant before week three and then start with half the recommended feeding. The plants just love it and within a week I have ramped up the feeding to close to normal. You will see such a difference in your plants once you start feeding that you would never ever go back to not feeding them.
If you had two reservoirs I would tell you to run a control batch without nutrients and the second batch with nutrients. Once you see the results you will never go back to nutrient free.
yep..... thats right...what he said ^^^