First grow ever Royal Gorilla Auto

The 3 gallon pot looks like a good size for your tent but I would fill the pot with soil. As the plant grows the soil level will drop. I had done some auto's in 3 gallon fabric pots filled to the top. Lately I grow auto's in 5 gallon fabric pots filled to the top. 3 gallon will grow nice plants but I got bigger plants and more yield with 5 gallon pots. I use a old soldering iron or heat a nail and burn holes around the top edge of the pot. They are great locations to attach wire/string if you do low stress training.

Yes it looks lanky move light a little lower or move pot closer to the light some. best of luck with the grow.

If your plant is growing well, is there a real problem? Your high readings are probably from the fertilizers the manufacturer added to their soil mix.

Meter that light if you can...that's really the only way to really know what it's delivering at any given height, though 30w seems scant at best. You might want to look into running your light 20/4 or even 24h to make up for lack of firepower with extra exposure time...you'll probably have a better chance of success. Before I went and bought a higher powered light I was sitting with ~100w or so and an experienced professional grower suggested I go 20/4 or 24h to make up for lack of delivered PPFD.

Looks great honestly I can’t even tell anything happened to it. I’d bet she’ll make it just fine. If it’s still looking good 24-48 after the accident - you’re in good shape and no need to worry

Plants still pretty small. If u believe the tap root still has water just water a little around the plant not at the stem. Make the roots stretch out to the ends of the pot

At the moment it is too early to say the cause. But the only thing I can tell you is that: the chlorophyll is degrading. That means you might have a magnesium deficiency.