Why don't you try PPS-pro method of fertilizing.
You premix the macros in one bottle with distilled water, do another with CSM-B and use a medicine syringe to dose daily.
It's easy, you just have to remember how many ml per tank.
And you dose in such minute amounts, if you mess up it's not a big deal.
Charles
Adding ferts to liquid is hardly a specific method,
everyone adds ferts to water, the issue here is that they added the wrong one to the water.
I've messed up dosing dry and liquids equally over the years, neither was any big deal. If so, what might we see if we added "too much"? How much K+ is too much in terms of detrimental effect?
By adding such minute amounts, you also run the error of adding way too little of a specific nutrients, eg: limitation of plants.
That can and does cause downstream dependency on CO2 and light use.
Hardly a reduction in error.
The range for excess is much larger, thus the error for providing a good range of fertilizer is much higher.
If you dose in the A to B range, the range of ppm's is very low, and you have some plant growth limitation. However, the ranges for C and D are huge.
Obviously, as far as dosing and management go, the C/D range is a lot easier to target and rules out a limitation factor.
For K+, the max ppm's without any ill effects, independent of other factors like light, CO2, other nutrients was at least 100ppm, I'd say more like 150ppm.
So say 10ppm to 100ppm, that's a lot easier to dose that range vs say 2-10ppm of K+.
Does not matter if liquids or dry are used then.
For smaller tanks, making a stock solution works better since the teaspoon measures become so small and tough to add, but it still works.
Regards,
Tom Barr