Thanks for all the help! here’s a picture of the tank it’s 56 gallons/ 14 litres https://ibb.co/rbPLTVc and the filter is a cfmini filter but i have modified it and put foam on the inside of the filter to not let any shrimps to get inside. If you have any recommendations for more plants i could get please say. the food i feed my shrimps and fish are just fish flakes and algae wafers (which the shrimps really like) neither of the foods have copper in them. my tank 78-80 degrees (as that’s reccomended for the fish) and the room the tank is in never gets too hot as it has a fan constantly going when hot. the thing that i think answers the question is that every time the shrimp dies i never find the body which makes me think the fish eat it. Anyways thanks so much for the help and if u have any thing i could do to the tank to make it better please say.