Can Tropical Fish Mix with Goldfish?

Tropical Fish and Goldfish Should Not Be Mixed

One of the most common questions I get asked on a frequent basis relates to Goldfish and Tropical’s – many new aquarists don’t fully understand why other hobbyists are always saying “Goldfish must be kept with Goldfish.” And that’s completely understandable!

Very few people elaborate further on that statement, probably because they understand the reasoning themselves so it doesn’t seem important anymore. Here’s a brief explanation of all the key reasons why you should keep your Goldfish and Tropical Community fish separate.

1. They require different temperatures to thrive. The first reason that really stands out once you start researching the care of each type of fish is the required water temperature. Goldfish are a coldwater fish, and while they may do fine in water around 70 degrees F you will not see their best potential if you keep them in water that is too much warmer than that.

On the other hand, tropical fish do best in water ranging from 74-78 degrees F – and sometimes much warmer than that! A tropical fish that is kept below 74 degrees F will become lethargic, quit eating and will be generally unhealthy all the way around.

2. They do not have the same dietary requirements. Goldfish will not do well on a diet that is meant for the majority of tropical fish. They require a diet that is very rich in fiber so that they do not become constipated. Unfortunately, constipation can become a major issue with some Goldies and lead to death.

3. Goldfish get too large and Tropical fish stay too small. The average size for a fancy Goldfish (the one that looks like an egg) is between the size of a tennis ball and a softball, and the single-tail varieties get even larger than that– the majority of tropical community fish will never even come close to reaching that size!

Combined with their size and huge appetites, your Goldfish will soon start to look at the other fish in the tank as a potential snack. Once this happens, you will eventually come home to find a very fat Goldfish and no Tropical’s left in your tank after your Goldie has reached adulthood (even sub-adulthood for some breeds!).


Facts about japanese and pets.

by livecartoondog


There are 19.3 million pets in Japan, compared to 193 million pets in the United States. The number of pets has increased 50 percent between 1990 and 2000, with the biggest increase among affluent households. The domestic pet market is worth around $10 billion a year and thus far has been recession resistant. [Source: Euromonitor]
A 2004 survey by a pet food company found that among two-person or more Japanese households 23.4 percent owned dogs, 12.9 percent owned cats, 3.7 percent kept goldfish and 5

You might also like:
MIXED FISH TANK 180 l, coexistence, …
MIXED FISH TANK 180 l, coexistence, …
60 gal tall oranda goldfish planted …
60 gal tall oranda goldfish planted …

Secret Caribbean Island Vacations  — Businessweek
These shipwrecks host some of the world's best diving, with stingrays and 100 species of tropical fish making their home in the skeletons of Spanish galleons and British warships.

Monster Goldfish Invading Our Lakes
Monster Goldfish Invading Our Lakes
Crystal Clear Fish Tank || Majorly Goldfish
Crystal Clear Fish Tank || Majorly Goldfish
Related Posts