Hi guys I have currently just set up a 400 litre medium tech tank as I dose liquid carbon and ferts everyday. I have put about 20 crypts various kinds java fern and moss. My lighting is on 7 hours per day the lighting I use is a led aqua one plant glow 120 49 watts. I have cherry shrimp and amano shrimp in there with tetras. My tap water is 7.14 hardness Clarke is this ok for shrimp? I have lost 2 cherry shrimp these last few days. Any help would be great. Also I use tropical substrate for my plants aswel.