According to the IRS (see Pub. 590): Generally, an excess contribution is the amount contributed to your traditional IRAs for the year that is more than the smaller of: â¢ $5,000 ($6,000 if you are age 50 or older), or. â¢ Your taxable compensation for the year.
So, what does pH mean for water? Basically, the pH value is a good indicator of whether water is hard or soft. The pH of pure water is 7. In general, water with a pH lower than 7 is considered acidic, and with a pH greater than 7 is considered basic. The normal range for pH in surface water systems is 6.5 to 8.5, and the pH range for groundwater systems is between 6 to 8.5.
Ordinary tap water usually has a pH of 7. However, the water in your tank will have a different pH because of the chemicals that are dissolved or suspended in the water. Different species of fish thrive on different ph levels. For guppies, the idea water pH ranges from 6.8-7.8. Water hardness