Yeah, I have had a 8 inch goldfish ina 75 community tank for over 3 years. I took him out of my piranha tank after he had been in there for over 2 weeks, evading every attempt at his life. So I hooked him up. Gave him a nice tank, fed him flakes and pellets until his tummy got nice and fat. And how does he repay me?The bastard eats $40 worth of neon tetras in 3 days. I can only keep him with 2 large angels,2 gouramis, and a few larger lemon tetras. Swordtails and danios also go missing in his presence. The goldfish is by far the most opportunistic feeder in the fish world, so if the situation requires it, they can be slightly aggressive.
