Much better improvment! Personally I would turn off the air pump, as if your going for a planted tank, it will drive out Co2 with surface aggitation, or if you like it, then keep it, it's up to you. Your gravel looks much better now, how did you live down to putting that old horrific gravel in your tank?
the old gravel reminds me of a bag of lollies and all the different coloured wrappers. Great Improvement I'm sure your plants would appreciate not having disco fever anymore.
Looks great! Alot better than the gravel in it last time! I still cant believe that I wanted pink gravel for my tank! I am going to totally change my tank around too.