Lets break it down to English..how much Mag salt per gallon?
Roughly...or better,per 50 gallons? I noticed over the years that with large aquariums...the per gallon goes farther on less.
Ah jeez.again I forgot they invented google. One website by a college said one ounce of epsom salts per 1,000- 1,500 gallons would be enough for a aquaponic/hydroponic systems plants. That breaks down to two mere teaspoons for the 240 gallon tank. Seems very little...but also sounds very safe.
It's been done and we will see in a few days or week if anything has changed.
One more.What do you think of the college blog advice ?