I love it when things start growing fast. The 4 big girls are mostly about 7" tall now and they look great to me. There is the runt that wouldn't be left behind but she's almost two weeks behind the other girls at 3". Out of an abundance of caution I'm going to stick with using only 50% of the recommended nutrients as shown for another week. The girls don't drink very much at this stage since they are just developing their root systems. Last week I only gave them fluid on Monday evening and Friday evening (last night) - and about 500 ml is enough to flood these quart containers presently.