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02-18-2009, 06:32 PM #5
Senior Member
Sick plants
The spots in the middle of the leaves looks like nutrient solution was dripped on them and left to dry, which can kill leaf tissue. But the fingertip and leaf-edge neckrosis looks like overfert. Since you've been flushing them (too much) I'm sure there's no salt build-up that FF is known for.
On most plants, black is death, not growth. :thumbsup:
Originally Posted by zihowie
Why the calcium additive, and what kind? This will keep throwing your soil ph off whack. And how much of the Tiger Bloom, and how often. Have you seen their nutrient schedule? Fox Farm Nutrient Schedule
Originally Posted by zihowie
Knowing your water ph is fairly important, and a question you'll be asked whenever you look for troubleshooting help.
Originally Posted by zihowie
If you are cash-strapped, a freshwater aquarium ph test kit goes for around $7.00 or so. Otherwise, a ph pen goes for $60 and up, plus calibration solution.
The aquarium test kit is ok for ingoing water without nutes, but is unusable with nuted water and runoff. It's a color-coded result, and any tinting of the water will skew accurate results.
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