I had to remove my female proteus from the community tank last night she began attacking every tank mate the black stripes that I have never seen before came up .we are having some very hot days here in the uk my tank is at 31.5c and that is after a 50% wc with cold water on sunday .I think the heat has increased the aggression in my proteus pike . As you can see in the photo she is usaly a more drab grey but has coloured up at the moment.