I am using tap water..

but stinky, I made a new name, because I felt no one was awnsering my threads on the other one because I feel I got kind of annoying because I was worrying alot and asking a billion questions. but um, how do you foiler feed?? I bought garden lime (because I thought I had calcuim deficiency (i believe it may have magnesium in it, ) if this isnt good enough can I get a good garden fertalizer at lowes or homedepot because there are no garden stores around here?

Also, what about the roots in the picture above, are they rotting or somthing, because I knwo they arent supposed to be brown?