Why waste the aluminum? Old southern solution;
I have used this for years. The instant grits really work. I use it for fire ants. The fire ants have killed off other ants. The other ants used to provide food for our horny toad (horned lizard). As a result of those fire ants killing the other ants, our horny toad population has been decimated.
So...I only kill fire ants.
Here in the southeast, the instant will swell up with just the high humidity. I’m sure in the desert that will not be a problem.