hey mate, i'm in west aus if your round, i'd be haapy to come over n help you out! lol
although these days our dollars worth around nearly as much as the american dollar, there economy's in the shit while ours is flourishing!
so i hate to agree with everyone else gainst a fellow aussie. but you did get a little jipped.
there are heaps of stores around our beautiful country that have everything you need and remember, you cant trust your local seller, all they want is your money!
the people on here are experienced and friendly with plenty to offer.
just remember if your going to ask a question about a prob, the more info the better... Ph, PPM, Temps, ect especially pics(worth a thousand words)
back to business,
sounds to me like you hve a bit of a ph prob, just flush with lots of RO water.
If your using 2 600W HPS each one can easily cover a good 1m square so you should be able to grow 15 plants easy if each plant is in a squre pot around 30cm x 30cm, thats 9 per light!
good luck