- Test tubes
- Cotton balls
- Plastic bin (I use a shoebox sized bin with about 1gal of water)
- Cotton fabric or glove fingers (optional)
- Baking Soda (optional)
- Ascorbic acid (optional)
- Food coloring (optional)
- Rinse out the plastic bin to make sure there are no residual oils on it from manufacturing or dust from where it has been stored.
- Fill up the plastic bin with about 1 gallon of distilled water. Tap water is ok if you are sure that you do not have hard water - my tap water is around a pH of 8.5 so I don't use it for this!
- Add in 1.5 teaspoons (around 3 grams if you have a scale) of methylparaben to the water and mix it well. (Optional: Add in baking soda, ascorbic acid, and food coloring at this step also...you will need to experiment with the amounts.)
- Take a cotton ball, get it wet, and prepare it as usual for plugging up the tube.
- Completely submerge a test tube in the water and while still under the water level use the cotton to plug the tube
- Use a sharpie or some other clean cylindrical object to press the cotton down into the tube to open up whatever amount of space needed for the ants.
If you add in the baking soda/ascorbic acid please remember to check the pH levels and try to keep it in the range of 4-6 pH and absolutely not above a pH of 8. You may also need to experiment with more or less methylparaben - I generally only use about 1tsp per gallon of water but I don't usually have trouble with mold either.
Edited by Subverted, April 25 2017 - 2:49 PM.