hold up you said you let two flower on there own whats that mean?? and no don't use that salt it has perfume in it and can kill them! Also yes on bigger pots and if you are letting them get light when they should be in dark will slow that also! What kind off light you using?
I know I am late on this one but get some grape fruit kush from Barnie s one of the best for the up but not lock you down high!!!
Just my opinion I could be wrong