I have a ten gallon tank with one large fantail goldfish and two smaller common goldfish. What other kinds of fish can I put in with them and how many?
Three answers:
Sibyl
2009-07-20 18:11:37 UTC
Your aquarium is currently very overstocked by the goldfish you currently have. Without upgrading your aquarium you have no options.
Commonly accepted goldfish stocking guidelines:
-A single fancy goldfish requires 20 gallons and 10 gallons more for each additional.
-A single common goldfish requires 55 gallons and 20 more for each additional.
For future reference, goldfish are best kept with other goldfish of the same variety. Meaning fancy goldfish with other fancy goldfish, and common goldfish with other common goldfish.
I recommend rehoming the common goldfish with someone with a goldfish pond willing to take them in. With an upgrade to a 40 gallon you could have two more gorgeous fancy goldfish.
fishobsessed!
2009-07-20 18:22:43 UTC
Sorry but unfortunately you can't put any other fish in. Goldfish need at least 200 liters of water, and fancy goldfish need at least 80 liters. A 10 gallon tank is only equivalent to 38L, so ideally you shouldn't have any fish in a 10 gallon tank but maybe some neons or snails. Goldfish need to reach certain speeds while swimming in order to get enough oxygen they require in order to survive. It would be okay to have both those fish in there for the first few weeks of their lives if they were babies, but goldfish are more suited to tanks over 200 liters and fish ponds. Another reason they can't be kept in small tanks is because the produce a lot of fish waste (a lot of poo), and this is converted into ammonia which is harmful for fish. It's hard to cycle a tank when it is so small with so many fish in it because your fish are producing dangerously high levels of ammonia and it will lead to fatalities. You will need to be cleaning out your tank daily, which will be removing large amounts of the good bacteria which convert ammonia into nitrite and then nitrate (the cycling process).
I would be looking at to either upgrade your tank immediately to a tank over 55 gallons, or to either find your fish a new home as they are in great risk in the tank you have them in now because they would have outgrown it by now. This will stunt their potential growth and cause them stress which usually leads to death as stress lowers their immune system and makes them more susceptible to disease and infections.
troublewolf
2009-07-20 18:16:31 UTC
The first poster is completley correct. Your tank is way too small.