Plants look great. If your looking to upgrade your air pump, look into a Super Luft piston driven air pump. You can run from 2 to 6 buckets at a time, with tons of output. Also get the largest air stone you can find that will fit in a five gallon bucket. I use a 4" at the moment and it puts out a lot of bubbles. More bubbles, more oxygen, more oxygen, bigger, happier roots. Which means BIGGER plants.