Thanks for the info
@lloyd378, along with your response on my other thread about my 300g restocking. I need to get the fishroom set up better to grow out a little fish. Right now the only space is my 46g bowfront, was hoping to get things moved around and at least have a 40B or 50B to work with. Really like the look of the jardini but the aggression makes me rethink since I dont want just to one fish if it decides to go on a killing spree. But then again a 20" Jardini would look pretty good solo in the 300... lol
There are a few videos on YouTube where people with large tanks have jardini in with other large fish, Oscars, datnoids, and others.
In college we had that 10ft long 300 gallon with a jardini, silver arrowana, and 3 softball sized blood parrots. We did the wave/ current makers so the fish spent most of their energy swimming and had nothing left for aggression .
I will say, if I feed my jardini 2 large crickets then he is full and won’t touch the pearl danios.
I think a jardini would attempt to chase the silver dollars, but he wouldn’t kill them, in my opinion. I also think if you bought one small, you could put him in the 300 and with the silver dollars being large, he may grow to just accept them as tankmates.