Restaurants or sub shops would probably be the best place for freebies, otherwise any suitable-sized glass jar or vase would work. Wal-Mart or a craft store would likely have something usable.
Do you have to remove the sponge and turn off the air to feed? Seems a bit cumbersome especially if you feed fry two or more times a day. Other than that, good idea.
Do you have to remove the sponge and turn off the air to feed? Seems a bit cumbersome especially if you feed fry two or more times a day. Other than that, good idea.