There are no crystals on your plant except for maybe salt crystals from splashed nutrient water. The only dankness coming from that plant would be death and decay. You don't get THC crystals and Dankness until you're well into flower, and you're not even out of seedling stage.
You say you plan to plant 5 or 6 plants next. Unless you have access to a lot of seeds, I have a better suggestion. Buy a packet of tomato seeds, plant 6 of them, and try to get them to grow to a foot tall. Once you can successfully grow a tomato plant to 1 foot tall without issues, then go back to cannabis.
And learn about horticulture in general. Cannabis isn't magical in regards to how it grows. Learn how to grow plants, and you'll learn how to grow Cannabis. Once you can just grow normal plants, then start focusing on maximizing growth and output and learning the peculiarities inherent in Cannabis cultivation.