Dream: Fish

I have a big pool and put a bunch of fish into it. This one fish starts eating all the other fish. It starts growing and eventually gets so big that it takes up the whole pool and thensome. I have thoughts about getting rid of it but keep it for some reasons. I think I also keep feeding it, like the plant from Little Shop of Horrors.

It eventually reaches the size that for me not to get eaten, I have to creep along the walls. Even then. . .. The thing almost looks or feels like an octopus or squid. . .it seems to have tentacles or something. . .even though that thing that just flapped by my head could just be the tail.