I'm developing an iPhone game using cocos2d.

As the player moves around and scores points by doing things, I cause little CCLabelBMFont instances to appear and then fade out (CCFadeOut). These CCLabelBMFont instances are sprites that are added to the layer.

Am I "leaking" memory or anything by not removing the faded-out sprites from the layer after they have completed the CCFadeOut action, or are they then gone, or don't need to be considered "valid"?