H3bo3 & Znso4.7h2o Tsp Bug

[Aaron Chen]

Hi all~~~

please check

Thanks!
============================================

H3BO3 0.01 / 0.01 / 0.003
Your addition of 10 mg H3BO3 to your 127L aquarium adds:
Element ppm/degree
B 0.01

Your addition of 10 tsp/caps H3BO3 to your 127L aquarium adds:
Element ppm/degree
B 0.01


Your addition of 10 ml H3BO3 to your 127L aquarium adds:
Element ppm/degree
B 0.003

=========================================================================

ZnSO4.7H2O 0.02 / 0.02 / 0.004

Your addition of 10 mg ZnSO4.7H2O to your 127L aquarium adds:
Element ppm/degree
Zn 0.02
S 0.88


Your addition of 10 tsp/caps ZnSO4.7H2O to your 127L aquarium adds:
Element ppm/degree
Zn 0.02
S 0.88



Your addition of 10 ml ZnSO4.7H2O to your 127L aquarium adds:
Element ppm/degree
Zn 0.004
S 0.176


=========================================================================
KNO3 0.05 / 328.38 / 65.68
Your addition of 10 mg (equivalent to less than 1/64 tsp) KNO3 to your 127L aquarium adds:
Element ppm/degree
NO3 0.05
N 0.01
K 0.03


Your addition of 10 tsp/caps KNO3 to your 127L aquarium adds:
Element ppm/degree
NO3 328.38
N 74.18
K 207.05

Your addition of 10 ml (equivalent to 2 tsp + 1/64 tsp ) KNO3 to your 127L aquarium adds:
Element ppm/degree
NO3 65.68
N 14.84
K 41.41

 

[Allwissend]

Thanks for bringing this to our attention.

The dosage based on mass is correct.

Dosing based on tsp is always an approximation based on the grain size and/or shape used to make the calibration. This will most likely be different than what you have. Probably dosage with tsp for these micronutrients were never calibrated and received a default value. Given their lack of accuracy and small conc. it's a bad idea to dose individual micronutrients to aquariums using tsp.

The ml option is there for solutions not for solid salts. Far as I know this issue has already been discussed and will be corrected. Dosing solid salts based on volume defies logic in my opinion.