Epsom Salts?

Hi ive just started using epsom salts in my water, just curious if i have to keep replacing it when i add more water?
Cheers

Epsom Salt = MG, so by adding that to your solution you are either deciding.

A) My nutrients need more MG I am 100% sure of it.
B) This strain is known by me personally to need more MG.

It is not typical to need to add MG and toxicity is ugly, fast, almost never recoverable.. Why are you adding it do you have a specific reason?

i have pretty hard water at 230ppm and i can see plainly obvious MG defiency on my babies, been told on this site to use 1/4tsp to a gallon, sorry bout the lack of info lol

Hey if that was the advice you were given, each time you change your rez maintain that ratio. If you trust the advice, seems like you do you didn't post a lot of info.