Quote Originally Posted by Puffzter
Yes they are fine after 3 days. In an aero 100% of the nute uptake stops the very second the water is changed and plants don't store nutes. In their normal enviroment the storage is the medium in which nute levels are relative constant so they don't need nor have capacity to store up on stuff like that for much more than a short period of time.
You can see leaves starting to loose its color in 12 hours in an aero if you stave them. Coco and even more so soil needs to be flushed pure of nutes or as clear as possible before you actualy start starving the plants but you will bever be able to get them as "clean" as in a mediumless hudro/aero grow.

Well, that makes alot of sense! Now I regret I bought an NFT and not a aero, hehe. But I think I would have temperature issues in the water so I think I'll have to wait until I have another flowering chamber...