zen, thanks for answering my first question. im still trying to wrap my head around the whole hydro concept though. How do you maintain the ph of your water? ive heard tap water has a high ph, so how do i lower it? i dont want to use bottled water if i have to replace the reservoir every few days.
the res can be changed every 2 or 3 weeks. if you have hard water, you might want to filter it or use bottled water. get good chemical nutrience, don't use anything like miracle grow or anything organic in hydroponics. good nutes have ph stabilizer in it so the ph shouldn't stray to far. just check it once a day and it should be good. you'll get the hang of it.