User blog comment:Water Fish 88/Feature idea./@comment-27888664-20160307232908/@comment-27538855-20160308003816

You would take a breath out of it. Or, if your deap and you want to save oxygen, you could pump about 5 seconds of oxygen from your tank into the oxygen packet, and when your low on oxygen, you use it and it gives you an extra 5 seconds. You could also pump the air into the floater to make them huge. Speaking of that, I think the wiki shouldn't say that reefbacks are th biggest passive creature because the biggest passive creature is actually a giant floater.