hello everyone I have a 10 gal tank that I first set up as a orange shrimp tank it has been up for two+ years and the shrimp pop exploded I did add ember tetras to the tank as wells shrimp pop still doing good with fish in there then all of a sudden I started loosing shrimp it started as one every other day then maybe two shrimp in a week that we seen I know they eat the dead but eventually I lost all shrimp so I put in a couple of overflow of wifes guppies the fish are doing well can't say water parameters are normal but they are in range my concern is that I was going to put back some orange shrimp from another tank back in but we only have a very few of them and hundreds of cherry shrimp from wifes tank so I put in three cherry and in bout two days all shrimp are dead and their bodies are still in one piece so I am wondering what could be killing shrimp but not effecting the fish thank u all for the help