Small businesses said Monday they are concerned about added cost and burdens from health care reform, particularly on industries such as indoor tanning. The Senate bill that the U.S. House passed Sunday night would not require small businesses to provide health insurance, but it would penalize employers with 50 or more employees if one of their workers signs up for federally subsidized health coverage. It would open up government-run health care exchanges for the self-employed and those whose employers don’t offer coverage. It also includes a 10 percent tax on indoor tanning salons. Business groups opposed the bill, saying it would strap businesses that are already struggling in the recession with higher health care costs.