I'm really trying to liven up my feeding routine. I was thinking about adding live Brine Shrimp to the list, as I have heard live foods are like crack for fish (in other words, they like it alot). I have seen the little hatcheries they sell online. I guess I'd like to know...are those things worth the investment, what is a good one, are they easy enough to hatch, and is this a good addition to my fishy diet?