[Cichlidsrule]

This is an easy and fast way to test the pH of your tank without having to go out and buy those expensive kits.
1. Buy some RED cabbage (it won't work with regular), throw about five or six leaves into a pot, and boil it. With water, of course.
2. You should see the water start to change color in about two minutes, but it takes about fifteen to get it a good and dark blue (it should be almost purple).
3. Once the water has turned a dark blue, remove the cabbage leaves from the pot.
4. Measure out about 3 drops of your tank's water into a dish. Add about 3 drops of the cabbage water. If the tank water turns pale pink, your water is too acidic. If the tank water turns pale green, your water is too basic. If the water color stays dark blue, your tank water is neutral.