Big Bud in Mezzgrow's Lazy River

Everything growing great. Ending the week with some roots dipping their toes in, by the end of next week we should be in the vigorous part of veg. Also! Dude at the hydro shop recommended this "Advanced Gravel" as opposed to expanding clay. He said rinsing was less hassle, and they don't expand or soak up nearly as much mineral salt content as clay. Guess I'll see. Like it so far, can attest it is easier to prepare for use.