How much epsom salt do i add to water

just like the title says, i have what i'm 99% sure is a mg deficiency so i need to go ahead and water them asap.

and on another note the search function for this site is the worst ive ever dealt with. i typed in "how much epsom salt gallon water magnesium deficiency" and it told me it didnt meet the 3 word minimum. i know ive seen this answered here before but i dont know how the hell to find it. if any mods happen to be reading this you should really consider changing the search requirements. as ive found on several occasions you cant find shit and it makes for a lot of annoying repeat posts (like this one)

1 tsp per gal is what works for me

should i do this every time from now on or just until they get back to health?

i use it through out veg and it don't hurt em

Hello, I want to prepare my own nutrient solution by using chemical grade salt's according to chemist's salt fertilizer recipe (look at GROWFAQ). I will be growing lowryder2's. Another page in the GROWFAQ says that a proper flower type solution should have around 1200 ppm, but the one on the chemist's salt fertilizer recipe (flower mix -cola diet) only has around 600 ppm, no way enough nitrogen or phosphate for flowering. I have been trying to modify the formula in to a proper flowering solution but I can't do it. Is there anyone out there that knows a recipe for flowering that uses chemical salts (K2SO4 etc.)? I would really appreciate any help on the matter. Thanks!