Half hour to do Hanna ALK, HR nitrate, and ULR phosphorus. I use salifert for calcium and magnesium.
It helps to have everything in one place(as opposed to all those hanna boxes). Something like this helps:
My regiment is:
Hanna ALK
salifert calcium
Salifert magnesium
Fill both cuvettes for the nitrate and phosphate kits. Start the nitrate kit, shake for 2 minutes, put in egg. The start the phosphate kit. By time the phosphate kit is done, I have about 2 minutes left on the nitrate kit.
AND FWIW.....
You don't need to make sure very drop of reagent is out of the packet. Hanna has stated there is extra in the packet, and not every grain is needed.