how can u tell

[redvetttes]

how can u tell between low mg. or toxis salt build-up
my trouble is in the last 4 weeks of blume ,
do a plant need more mg. in the last weeks of blume {to get big buds} ?
they look good till this part ?

redvetttes Reviewed by redvetttes on 10-11-2005. how can u tell how can u tell between low mg. or toxis salt build-up my trouble is in the last 4 weeks of blume , do a plant need more mg. in the last weeks of blume {to get big buds} ? they look good till this part ? Rating: 5

[Zandor]

you can tell by watching the transformation of the leaves early on. If you are talking about only lower leaves or new growth too.

Yes if you are using RO water then you should have used CalMag Plus from day 1 imo