Planted Tank Guru
Join Date: Jun 2012
Location: Gainesville, FL
Your last link shows the product is 12.8% Mn.
I'm not sure which Tropica formula you want. Tropica Master grow has 0.04% Mn. So adding
1.562 gm of your Mn EDTA in 500ml of water will create a solution with 0.04% Mn.
Edit: Sorry, math error. The correct amount is 1.562 gm. Btw, you could use this
calculator using DTPA Fe 13%. The math is pretty close 12.8% versus 13%. Just use your container size in place of tank size. Convert 0.04% to ppm which would be 400ppm (move the decimal 4 places). Then use "what dose to reach a target" for the "and I am calculating for" selection. Just ignore the teaspoon weights since they would be different.
Last edited by Zorfox; 07-18-2014 at 12:23 PM.