p!nkforpresident wrote:


hi there ,

I have a really vbig tropical tank and a tiny coldwater one so it
seemed to make sense to add the two goldfish to the tropical set up !
Would this cause any serious problems ?


How big and how small? goldfish need space and are big waster producers, do
they can make the water conditions worse for others. They need different
food as well. And many tropicals tend to eat their fins...

Better not to mix, but then you need to get the goldfish out of a small
tank. They need a bigger tank than tropicals...