Planted Tank Guru
Join Date: Nov 2009
Location: Missouri united states
I dose 80 gal low tech NON CO2 ,excel,glut,etc once a week with
1/2 to 3/4 tsp KNO3
1/2 tsp KH2PO4
1/2 tsp CSM+B
50% water change each week.
Fish and shrimps are fine with this for last couple years and plant's do well.
Now this is just my tank/dosing but I would not worry bout the dosing you mentioned.
Point being,,you would have to get way carried away with the dry salts to have anything to worry bout.