Moon Faucets are different than other regular faucets because members are totally free when to claim their coins. Most other faucets only allow you to claim once per hour or once per day, Moon allows you to claim as often or as little as you like however, there is a minimum of 5 minutes between claims per account/IP address.
The faucet will gradually fill up – pretty fast initially but it will slow down over time – until you make a claim. So the longer you leave it the more you will be able to claim. If you want to, you can claim a smaller amount every 5 minutes, or visit once per day and claim the large amount that has built up while you were away!
The same principal applies to all Moon Faucets: Bitcoin, Litecoin, Dogecoin, Dash and Bitcoin Cash