You could try the ph test strips, they are really cheap. Mine measure from like 6.0 to 7.6. The only problem with checking the run-off ph is that your water will be tinted, and could throw off your results. I ran my run-off through a paper towel (or clean towel would probably work too) and it cleared it up. Not sure if it affected the ph much, but the results were nearly similar before and after I cleared the water.
bigtopsfinn Reviewed by bigtopsfinn on . spotting curling leaves??? what's good everyone? i am having a problem with my ladies. this is the second batch in a row (only 2 batches ever) that is showing the same problems. the leaves (seems like mostly up top) are getting dry, and turning different directions. they are also spotting with copper-colored spots. it seems that they start showing signs once they are switched to flower. here is the troubleshooting form: E-indoor E-soil E-potting soil,.10-.08-.06 CSL-Perfect Mix SCL-nothing added to Rating: 5