Welcome to MFK, bro!
Yeah, your tale is all too common for a beginner. I agree with the guys above - the only thing that is more or less safe with an RTC is a tank mate that would not fit in its mouth at all.
It's not the fish's fault that it is placed in a completely unnatural situation... And then we reap what we sow and, of course, learn along the way
Not all RTCs would prey on their tank mates even if they do fit easily in their mouth. On the other hand, some RTCs will go out of their way to prey on tank mates. But most scenarios end up in the middle.
Beware, that we are talking about girth / height here. RTC and other predators are quite capable of swallowing a long fish partially, digesting a part, swallowing more, digesting more, and so on until the prey is consumed.
Yeah, your tale is all too common for a beginner. I agree with the guys above - the only thing that is more or less safe with an RTC is a tank mate that would not fit in its mouth at all.
It's not the fish's fault that it is placed in a completely unnatural situation... And then we reap what we sow and, of course, learn along the way
Not all RTCs would prey on their tank mates even if they do fit easily in their mouth. On the other hand, some RTCs will go out of their way to prey on tank mates. But most scenarios end up in the middle.
Beware, that we are talking about girth / height here. RTC and other predators are quite capable of swallowing a long fish partially, digesting a part, swallowing more, digesting more, and so on until the prey is consumed.