I made up two differnt MgCl solutions in my attempt to get rid of the bryopsis...a pure MgCl solution and the 2-part recipe for Ca, Alk & Mg
. Both solutions were equivalent in concentration to Randy Holmes-Farley's recipe in "An Improved Do-it-Yourself Two-Part Calcium and Alkalinity Supplement System"
at about 47,000 ppm of magnesium. Randy's recipe contained about 47,000 ppm magnesium, 70,000 ppm sulfate and 86,000 ppm chloride.
Just a note of interest....it appears that the bryopsis start showing signs of distress at Mg
levels around 1,800 ppm. I found that I could add 2X-4X the dosing amounts of the Mag solution without any ill effects on my coral or other livestock. I got very impatient after a week of continued dosing that I was adding 8 to 16 ounces of the solution at the end just to bring up my Mg
tank concentration to the level at which the bryopsis would die. It is very important that the Mg
solution is diluted in the sump before it hits the main tank so that no corals are getting hit with high concentration undiluted solution.
Originally Posted by rhouse24
Thanks Bob! I will take some before and afters and post them in your thread
One question, I know you dosed 100ml per day but how many ppm per day did that equate to?
Dosing 100 ml of the mag solution described above would give you roughly 1,240 ppm of Mag solution per dose into my 100 gallon system.
Originally Posted by binford4000
Great thread Bob and pics too ! I am wondering with your background was your homemade mag in the same consatration levels as the kent M which is virtually the same as britewells?? I've heard of the home versions just never had the guts to try it.It's easier to blame kent or britewell for my failures in the water world I guess.
I'm not sure what the concentration of Mg
is in Kent's or Brightwell's solutions, so I can't compare their their levels to the home made solution. The homemade versions are very easy to make and I have been making the CaCl2, Alk & Mg
solutions for many years with continued use and very few problems. The biggest problem you will encounter is when the Calcium and the Alk go out of balance....but you will get that in dosing commercial and homemade solutions.