The plant is growing super fast at this point. On day 16 I gave her her first 'big' feed of around 1.5litres. She seemed ready for it and I think it's safe to say we are past seedling stage finally.
On day 18 I decided to increase nutes to 3/4 strength. In retrospect this was a bad decision and I should have stuck to 1/2 strength.
After deliberating it for a few days I finally decided to top her on day 19. I know there are mixed views on topping autos, especially when it's a first grow but I thought what the hell and did it anyway. Excited to see how she reacts.
On day 20 I played around with LST and moved some of the larger nodes in order to get light to the lower growth. Plant is getting quite bushy by this point.