I need some advice. First of all, I have heard/read that ro water is supposed to be better for the health of plants and is more user friendly when it comes to mixing nutes. Well, I got this bright idea to use a gallon of water to mix my nutes to test this theory. The initial ph was 7.5. So, I put in several drops of ph down and it went to 3.4! I poured that out and tried again. Again, the initial ph reading was 7.5 and then I put three drops of ph down and again my ph reading was ridiculous low, so I poured that out. Then I tried a third time and used just one drop of ph down and then my reading was 4.5. With this said, does everyone else have this experience with ro water or is it just me?
My other problem, if you can call it that, is: I went to the shop to get some nutes and other stuff. I asked my shop guy if he had any idea what bulb to put at the top of my Tron for flowering. He recommended a led light. His theory is that I would be using less electricity to produce more light. Another shop guy said that leds are still a waste of time, money and effort. This is consistent with my previous experience with leds in that I used a 90 watt ufo in my last grow with minuscule, airy, sickly buds. The ufo was used in a 2x4x7 room to grow four plants. Obviously I did something wrong or had the wrong light for that application because I am seeing pictures from people who use leds and are successful at it. So, in a very round about way (sorry I babble a lot) I guess my question is three part. One, are leds really worth it or should I stick with my flourescents and irredescents? Two, if I were to use a led at the top of my Tron what would you recommend? It would have to have a E27, not a panel. Thirdly, exactly what led bulb could I use for specifically budding/flowering? Any and all advice and recommendations would be very much appreciated.
Thanks in advance!