Looks like HITH. What are Params?
It does seem quick for HITH, but the scarring looks just like it. It often will only affect a single fish. It seems like a lot of SA cichlids get it if they aren’t in the proper water conditions.
kno4te
Yeah same here, usually there are at least signs of it before it explodes like this. If you have hex shield it would hurt to feed.I wouldnt expect hith to move this quickly tho thats why I'm stunned