when it's best to do tests of all the elements?
Hi! i got planted nano tank and i dose with pretty much the whole seachem line (iron, trace, nitrogen, etc).
I also got all the needed tests (iron test, no3 test, po4, etc).
My question is this:
When is the best time to test all these stuff to be able to know if i need to add more/less from each element?
a day or two after i dosed? maybe before i do the weekly water change?
I hope i was clear enough, thank you !!