03-31-2007, 07:52 PM
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Your water may be the problem, high pH. Plants can be acclimated, but their general welfare will be compromised. Also, I notice that your fertilizer is total nitrogen, it is a low percentage but it should be so. While this is good to green up plants, it won't help with the growth. You should look for a fertilizer that has a little phospherous and a little potash in it. The numbers on the label denote nitrogen-phospherous-potash percentages in the bottle/tablet/powder. An easy way to remember what each does is the saying "up, down, all around". Nitrogen takes care of what you see. Phospherous takes care of the root system. Potash takes care of the all around health of the plant.
So soften you water up a bit, maybe down to a pH of 6.8-7.2 and change your fertilizer to a more rounded blend. You should be fine. To soften your water, I would use a softening pillow in my power filter that uses a resin to absorb salts that harden your water. Many pillows can be regenerated by following the directions on the package.