that would be really cool if it could work.
i have three silvers together now and that was a challenge . it required a second tank lol .
that i did have to use a few times for separating . i very well could have ended up with one or more dead fish along the way if i didnt have it . but they have been pretty good for a while now , gotten used to each other i guess .
but ya a silver and a jar that would be really awesome . i have owned two jars in the past not together mind you but i really love jars as well .
from what i remember of my two from years ago is that they are a lot more maneuverable in the water and much more aggressive . so you would really have to be careful .
maybe it could work if you were prepared to do a lot of work and have a second tank . but even then i dont know lol