Hello! I have a 5 gallon tank with a small betta and 4 shrimp. I got the shrimp just last Sunday, and one of them has died. On Monday, I gave each of them one frozen bloodworm to eat, which they seemed to enjoy. Then on Tuesday, I tried to give the betta mysis shrimp, but he didn't notice when one drifted off. It landed on the ground, and a small shrimp ate the whole thing. The next day, one of the shrimp was dead. I don't know if it was that shrimp because I can't tell them apart, but I assumed it was because I've heard that overfeeding will quickly kill shrimp. I know it's not from being uncycled, as I have no ammonia or nitrite, (cycled tank) and less than 5 nitrate. The temperature is 79 degrees, and the pH is 7.0. I also have live plants which they spend a lot of time in. Did that one shrimp die because it ate two larger meals in two days? I have not fed my shrimp since, so how often should I feed them?