Someone gave me a 1g tank. I set it up, added some plants....but now what can I add? I know practically all fish are out. Is there a tiny shrimp or snail or perhaps 2 male endlers or something equally as tiny that could grow in there? I'm not picky on my organisms I think everything is fascinating. Heck, I raised Daphnia for a NOAA lab and loved it (and would do that if I had a constant source of algae to feed them).