I know they were killed because I saw the blue legs laying on the sand bed. I guess he doesn't like the taste of those. I'm not going to get rid of him yet.
My parameters are good.
My tank is only 7 weeks old. I filled the tank with tap water to find out that my water was high in nitrate and no telling what else. So I bought a ro
filter. I did a 75% change after cycle and another 20% change before adding the crew. Still trying to get the nitrates to 0.