so i bought a driftwood from petco, for one reason or another didn't want it but couldn't return it, and there was a little snail guy attached to it. i've been reading around and i'm almost dead sure it's a baby pond snail, he's about 3 mm long. right now he's chilling with the hunk of driftwood in his own quart sized container, and i felt way too bad to flush him. he crawls around and looks fine.
how much should i feed the little guy? should i scrape some algae off the goldfish tank and dump it in his water? i don't really know what to do with him, but i can't just kill him or feed him to my goldie (or can i? :X) i guess i have a pet snail? when will i need to get a bigger tank/when will he grow? thanks for your advice.