Gilbert

I have 2 zebra danios. They were in my tropical fish tank, but it didn't have as much space as i thought they needed, they are very active. Can I put them in with my goldfish? It is a larger, 20 gal tank with lots of open space. It is unheated but is always 17-22C (64-72F) no hotter or colder. and the goldfish are about 3-5 inches. I put them in today and they seem just as happy as in the warmer tank and they love it. Just to see if there would be any problems.

Chief_waterchanger

All of your tanks are insanely overstocked.

Goldfish need large tanks (I wouldn't keep them in anything smaller than a 55-75g tank because of their adult size, but some people claim a 40g is large enough...), because their adult size is close to a foot in length. Along with the length they have a much larger bioload than other fish their length.

The danios are tropical and would not thrive with the goldfish.

Your aquarium info lists a 5g with an angelfish, even as a baby that is not a good tank for it.

Gilbert

i have a lot more tanks than it says

I know my tanks are "overstocked" but that is not my question

Chief_waterchanger

That is directly due to differing temperature needs.

I made sure to cover your question also, but we are here for the best interest of the fish and I did not mean to be rude or annoy you when I included the other information, however, my job is to work for the fishes' well being, and so I do.

jdhef

The profile on this site list a temperature range of 65°F - 75°F (18°C - 24°C) for Zebra Danios

Chief_waterchanger

I understand that text is what a lot of people go by, and if that is what you choose to use then that is understandable and perfectly alright. I only contradict text when my personal experience differs from said text. Your personal experience may be different.