Quote Originally Posted by cheapsunglasses
Well I put them in 12X12 pots. gave them plain RO to start. If I wanted to give them a little more CalMag down the road, like others suggested what route should I take? Lime? I will do a water run off test next watering.
There's a product called Calmag Plus, and I've heard a lot of people say they really like the Botanicare line... though you can probably find one from another manufacturer that's practically the same product. If you've mentioned it before I apologize, but is there any reason you can't use your tap water? Tap water generally contains enough usable calcium and magnesium where you wouldn't need the extra supplements.

I wouldn't add lime unless you're needing to adjust pH. I don't know much about Miracle Grow soil, but I imagine lime may already be a part of the mix to act as a pH buffer.
Mr. Clandestine Reviewed by Mr. Clandestine on . Problem with new growth I have a problem with the new growth on my plants. The tips of the new growth are turning yellow almost white. They are in the fourth week. Planted in MG Organic Choice (I know I know). 400 W about 15 inches up from tops. I have used 1tsp. of Epson salts/1 gallon water twice. No change in the last few days. Seems that they have slowed in growing as well. I haven't fed them any nutes as of yet. I do use well water, could that be harming them? The PPM could be high. I have searched but seem Rating: 5