A PH tester like the one I have pictured around here somewhere only costs a few bucks and is plenty accurate enough for testing tap water for our needs. Sticky is correct about the stunting and my bet is once your water is corrected they'll take off after a week or so. You can use either bulb during veg but MH is better however I recommend using both and rotating the plants or lights to cover entire grow with both bulbs. Yes it will double your grow's elec usage however you'll see much better results at harvest with fuller, denser and longer buds.
madeline Reviewed by madeline on . any advice? Hi all. i'm a first time grower, with 2 fem orange bud from dutch passion. they're 4 weeks from seed, approx 4" tall and 2' from a 250w MH cool tube. babys seem to be growing ok, nice and green and getting bushy, if not very tall. the trouble is all the leaves begin to fold along the center when they reach 4 or 5 days old. the branches all reach upwards towards the light and lots of the leaves twist also. they are clearly very different from the pics of healthy plants i've seen. (yes they Rating: 5