Bubbles coming from plants


	Two days ago I replaced my two fluros with two MH lamps.  Since that
time the plants are releasing bubbles of air(?) like an air bubbler.  I am
assuming that this is just the plants photosynthesising (sp?).  My concern is
can this be possibly bad for the plants?

	PH is 7.1 with DIY CO2 system feeding straight into the cannister
filter.  Temp is around 27 celcius.

s327959 at student_uq.edu.au

Still trying to finish the degree.....