Thanks for that, I was more and more leaning that way. The 'spots' dont really show up under my dim lights but do show under flash, so much so that I hadn't noticed them until photographed then looked for them.
I'm surprised, and glad, that there is a population of giants there, the spring fed creek is less than 300m long, has had cattle in it (only fenced on one side), has silt runoff in it from the two adjacent maze fields and last year suffered from over-spray killing all the cress and weeds in it.
It is growing back well, looks like the bite removed the tail almost all the way to the end of the rays.
He (most of my fish get called 'he' if the sex is undetermined) has already chased a few of the small 1yr old Cran's bullies. How big do you thing is too big for a 4x2x4 ft tank? I was thinking that the tank would be ok for two banded and 1/2 a dozen or so inanga.