Money Market Mutual Fund Rates Saving Money In A Mutual Fund?

Saving money in a Mutual Fund? - money market mutual fund rates

I think the money for a down payment on a house. I have both for $ 1500. It would be nice to put it in a mutual fund or in a better position in the market account money? We also plan to about $ 500 per month to put into the account each month.
I know that mutual funds can be risky, but the rates are subject to good performance have.