When adding those (Nitrogen Iron Magsesium) thru a man-made product they
are usually in an easier form for the plants to uptake, if the pH wasn't
high 8.4, imho, the plants would be green on what is in the water column.
Course it is always YMMV depending on your water and where you live. )
~ jan


CRC wrote:
Hi, a gardner told me to spray the leaves of my plants w/a tbs of epsom
salts to a gal of water and that would green up my plants...do you think I
could use it on the pond plants without hurting my fish?
CR

Not only safe but recomended, Epsom Salts are Magnesium Sulfate...
after NPK Iron and Magnesium (Sulfer is in the list too) are the two
most required elements, the three that most affect Greening of leaves
are in order Nitrogen Iron Magsesium... ajames54

(Do you know where your water quality is?)