Diatomaceous Earth is not a good internal wormer. It kills soft bodied bugs, yes, but loses cutting ability when wet, which, of course, the inside of a bird is. It does work to keep bugs from setting up housekeeping in nestboxes, kills bugs in feed, and keeps shavings dry under the roosts and it's good for dusting the outside of birds under the wings and around the vent, but you'd be better off not depending on it to worm your birds. I've used it for years, but I don't expect it to do the impossible.
I can't figure out how you'd put it in water and keep it from clumping up in there. It soaks up moisture in feed bags and clumps.
In what Imp posted above:
2 cups household bleach in a gallon container, fill with water. This is the solution. If kept sealed will not dissipate.
Make sure you DO NOT give the bird this solution at this strength! This is to draw from in Tablespoon amounts to put in your gallon waterer! If you give a bird that concentration of bleach in water, you'll probably kill it.
I can't see chlorinating water on a regular basis, personally, but wanted to be sure no one got the wrong idea, as they often do. I don't ever do that. I will, on rare occasion, put 1/8 teaspoon of Oxine per gallon of water in the waterers in each coop if I feel there is a reason to do so, but usually, it's just fresh, clean water.
Edited by speckledhen - 5/10/12 at 1:39pm