what is the name of that episode of SpongeBob?

one in which he loses his pet snail named Gary and sings a song about it

I do not think I've seen the episode, but I really want. There are two that I can find that fit this description. There is no 'Episode 28: Survival of the Idiots / object dumping "is dumped if Gary is attached to Patrick. The one I think you are looking for however, is" Have you seen this snail?''Season 4 Episode 67. SpongeBob forgets to feed Gary and flees. Hope this helped. Sepiano-(big fan of SpongeBob.)

The Gary Song/A Gary Tribute