You can send them gifts with extra lives so they can have more fun playing match-3 levels.
1. Tap the Friends icon in the left sidebar to open the list of your friends playing Fishdom.
2. Tap the Heart icon next to the friend you want to send a gift to.
3. Confirm the action.
4. You can send one life per friend per day. Once you send the gift a timer begins counting down the time until you can send another one. Once it disappears, you can tap the Send Gift button again.
You can also send lives by replying to your friends’ personal requests in the Inbox window.