Planted Tank Guru
Join Date: Jan 2010
Location: Contra Costa CA
Well, not really, just a suggestion that it is OK to use larger spoons, make your own liquid and dose it out over a couple of weeks.
So instead of needing such tiny spoons for daily dosing you would use a spoon that measures about 6 times as much. (If you are using the EI method, with every-other-day dosing.)
You could mix up enough for all your tanks in one bottle, then dose each tank in just a few minutes. I find that is easier than trying to measure out dry doses of several different ingredients, a different amount for each tank.