My two cents on O and Silvers heheheh
I have one living with RTCs that could eat it if they wanted to, but so far they don't. I had one cute albino oscar donated to me, it was gone in not so long time (granted it was smaller than the resident O and brigther in color which might have invited an attack by RTC or gars... RTC ate him, but gator could have been responsible for kiling - this i will never know).
Now, necrocanis has monsterous RTC and RTC/TSN hydrid living with bunch of O's so it can be done.
As for silver, my RTC ate one silver. I did not try ever since. Your TSN is certainly capable of eating this flexible spageti of a fish
On the other hand, TLkmDN has massive RTC living with quite a large silver (among others) ... imo RTC could eat it, but it does not for some reason.
Whatever you do, you are doing it with risk.... that is the nature of comm tanks/set-ups - rewards are great but so are risks (and heartbreak)