Quote Originally Posted by str8jacket secure
so where can i find some calmag plus? what is RO water?
You can probably pick up some Calmag Plus at your local hydro store. I know mine carries it, but I've never had to use it. RO water is water that has been purified through a process known as 'reverse osmosis', and a lot of people like using it and distilled water because there are no, or few, impurities.

I can't get all technical about it as many of our other forumites can, so I'll let Wikipedia break it down for ya: Reverse osmosis. Looks kinda like your plant may be getting too much nitrogen, but without knowing what you've fed it since you first posted, it's not easy to tell. Have you tested the pH of your soil runoff? I've seen pH lead to plants getting that characteristic claw shape.