Hi everyone,
Long post, sorry! Thanks for your inputs in advance.
Contemplating mixing my own micro batch based on the work of @burr740 and guidance from @Greggz (thanks to both). Why? Because I like to go down the rabbit-hole!! Here is what I have received as the final version (for now):
Elements........Compound.........Joe's ppm
Fe DTPA........................................0.01
Fe Gluc..........................................0.05
MN.................MnSO4.H2O...........0.025
B.................Na2B4O7.10H2O.......0.027
Zn...................ZnSO4.7H2O..........0.023
Cu...................CuSO4.5H2O.........0.0019
Mo...............Na2MoO4.2H2O......0.001
Ni.....................NiSO4.6H2O........0.00025
Multiple questions (want to dose daily)
1. My pH remains under 6.7. Thinking about Fe DTPA (0.05 daily probably). Why use gluconate if it is only stable under pH of 4.5?
2. How much ascorbic acid and potassium sorbate to add to avoid mold? Is there a formula somewhere? Vinegar?
3. Mix all together or keep separate?
4. Too much SO4? (considering I use sulfate salts of calcium and magnesium too)
5. Why do some people add CaCl2?
6. Some amounts in milligrams are miniscule when measured using the rotalabutterfly calculator!! How to measure even with a milligram scale? Make a concentrated solution with larger amounts and dose smaller volumes?
My tank (setup 3 months ago):
-16.75 gallons of water in a 20 long and canister and reactor
-RO water mineralized (Ca 20ppm and Mg 10ppm)
-GH 7
-KH 0-1 (K2CO3)
-pH ~6.2 before CO2 turns on and about 5.1 right before CO2 turns off (off-gassed 6.7) (all measured using a recently calibrated Milwaukee mc122)
-Over 50% plant mass at the moment
-Platinum soil with osmocote and clay underneath
-NO3 1ppm daily (KNO3), and the salifert kit reads at 2.5ppm usually at the end of the day
-PO4 dosing 3ppm (KH2PO4) daily and API kit reads about 1ppm toward the end of the day usually
-WRGB II 60cm lights
Currently dosing these amounts using csmb (daily)
Fe 0.02
B 0.0035
Mn 0.0057
Mo 0.0002
Zn 0.0011
Cu 0.0003
Thanks for all the help.
Omid
Sent from my Pixel 4 XL using Tapatalk
Long post, sorry! Thanks for your inputs in advance.
Contemplating mixing my own micro batch based on the work of @burr740 and guidance from @Greggz (thanks to both). Why? Because I like to go down the rabbit-hole!! Here is what I have received as the final version (for now):
Elements........Compound.........Joe's ppm
Fe DTPA........................................0.01
Fe Gluc..........................................0.05
MN.................MnSO4.H2O...........0.025
B.................Na2B4O7.10H2O.......0.027
Zn...................ZnSO4.7H2O..........0.023
Cu...................CuSO4.5H2O.........0.0019
Mo...............Na2MoO4.2H2O......0.001
Ni.....................NiSO4.6H2O........0.00025
Multiple questions (want to dose daily)
1. My pH remains under 6.7. Thinking about Fe DTPA (0.05 daily probably). Why use gluconate if it is only stable under pH of 4.5?
2. How much ascorbic acid and potassium sorbate to add to avoid mold? Is there a formula somewhere? Vinegar?
3. Mix all together or keep separate?
4. Too much SO4? (considering I use sulfate salts of calcium and magnesium too)
5. Why do some people add CaCl2?
6. Some amounts in milligrams are miniscule when measured using the rotalabutterfly calculator!! How to measure even with a milligram scale? Make a concentrated solution with larger amounts and dose smaller volumes?
My tank (setup 3 months ago):
-16.75 gallons of water in a 20 long and canister and reactor
-RO water mineralized (Ca 20ppm and Mg 10ppm)
-GH 7
-KH 0-1 (K2CO3)
-pH ~6.2 before CO2 turns on and about 5.1 right before CO2 turns off (off-gassed 6.7) (all measured using a recently calibrated Milwaukee mc122)
-Over 50% plant mass at the moment
-Platinum soil with osmocote and clay underneath
-NO3 1ppm daily (KNO3), and the salifert kit reads at 2.5ppm usually at the end of the day
-PO4 dosing 3ppm (KH2PO4) daily and API kit reads about 1ppm toward the end of the day usually
-WRGB II 60cm lights
Currently dosing these amounts using csmb (daily)
Fe 0.02
B 0.0035
Mn 0.0057
Mo 0.0002
Zn 0.0011
Cu 0.0003
Thanks for all the help.
Omid

Sent from my Pixel 4 XL using Tapatalk