Health insurer Aetna Inc. said that it has terminated two Medicare Advantage plans, affecting about 200 individual plan members in Connecticut, the Hartford Courant reports. One plan, an HMO, had 75 members and had fallen below the minimum of at least 100 members required by the federal government. The other, a private, fee-for-service plan, is being phased out by Aetna in all but five states. The termination of the plan is the result of the federal government's mandating that all fee-for-service plans become network-based by 2011, said Aetna representatives.