I decided to give Carlo's recipe a try in a few tanks by mixing up some DIY Tropica Plant Nutrition. It took me a whole 5 minutes to do and only cost about
$0.50 or less to make a 1000ML bottle of it.
Default DIY Micro Nutreint Mix
This formula is based on Wets recipe. Wet has a very cool calculator if you want to check that out Im leaving a link to it.
This is supposed to be the best thing next to Tropica Master Gro.
I am also a Tropica Master Grow and Miller's MicroPlex fan. I approached this problem in looking at the major micronutrients (Fe and Mn) then using CSM+B and MnSO4 to clone Tropica (the best micronutrient mix I've ever used).
500mL opaque container
3063mg Plantex CSM+B (~ 3/4 tsp)
438mg MnSO4.H2O (~ 1/16 tsp)
1500mg FeDTPA 10% (~3/8 tsp)
Fill the rest with DI water. Leave some space for some acid or glutaraldehyde if you want
Shake it up!
Good Sh... Tropica Master Grow
Fe 0.07% 0.07%
Mn 0.04% 0.04%
B 0.007% 0.004%
Cu 0.0005% 0.006%
Mo 0.0003% 0.002%
Zn 0.002% 0.002%
I mixed up a batch using Microplex this time, as you can see from this photo its taken a little bit of a green color. I will test these and see how they do compared to the first mix. From what it cost to make these from 1/2LB bags it literally cost only a few cents to make 1000ML.