i'm thinking about putting a jar in my 180 gal. com. tank, if things go bad, would i get some warning to move the jar or would it kill everything overnight?
I tried this 2 years ago. I had 8-3" in jars in a 100 gallon...It worked!!!!!!!!!
for the first 2 hours, then they slowly began to tear each other up. theres a 90 percent chance that it won't work. They hate their own kind for some reason. I tried dithers and other fish to keep them "distracted" but it just doesn't work!!!!
But you could try a large pond or a very wide tank. Maybe a 96"x48" footprint. You might be able to breed them...