I have 2 Zebra Danios and 3 long-finned Zebra Danios in a 10 gallon. They are happy and healthy and fertilizing eggs like crazy, but they are also very aggressive for their breed. They chase and nip each other all the time and hunt down & scarf up fry like nobody's business. My plan was to put 5 or so Red Cherry Shrimp to finish stock my tank, but I have a bad feeling they would just get eaten. Thoughts? My Danios are 1.5" max length, so I probably could get away with adding another fish or 2, but I was really looking forward to an invertebrate. I've read that snails excrete a ton, and reproduce, and I'm really not interested. My water is soft and around 7.6 pH.