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How big a fish tank do I need?
Here is the stock list:
2 Ryukins Goldfish
2 Ranchu Goldfish
1 Black Moor Goldfish
They are all about 3 to 4 inches from gill to beginning of tail. I was estimating a 60 gallon would be enough but I think as far as space I have for my tank I'm limited to a 40. Would a more vertical tank make up for that? I know surface area is important but with goldfish I know having lots of gallons is equally important because of the amount of waste produced.
8 Answers
- Gary CLv 71 decade agoFavorite Answer
You need enough space for the eventual adult size of your fish, not the size they are now.
I've never heard of measuring fish "from gill to beginning of tail" before (normally you measure "total length," which is the distance from the tip of the snout to the fork of the tail, or "standard length," which is from the tip of the snout to the end of the caudal peduncle), but your fish are not yet full-grown. Black moors grow to a total length of roughly 12 inches. Ranchus will grow to a total length of about 10 to 12 inches, and Ryukins probably 8 to 10 inches.
These fish are also heavy-bodied, so their total body mass is much more than that of other fish the same length.
A 100-gallon tank would be the minimum size for keeping those five fish into adulthood.
Having a tank with the same bottom area, but higher (thus more total gallons) helps in terms of water stability, but it doesn't give your fish any significant amount of extra swimming room. So there's a benefit, but not a big one.
Comment on another comment: "The bigger the tank, the bigger the hassle" is the exact opposite of the truth. The larger a tank is, the easier it is to maintain, and the healthier the fish tend to be. This is both because the fish have more room to do their thing, and because a larger volume of water gives you more stability of chemistry and temperature.
- Anonymous1 decade ago
You're looking at 150 to 200 gallons, or perhaps you could get a pond. Goldfish can grow to over 8 inches long and will barely have room to turn around in a 60 gallon. Goldfish are also very dirty and need extra space for that reason.
Source(s): My site: http://aquariumbase.weebly.com/ - 1 decade ago
I would go with a 55 gallon fish tank, also to help clean up the tank get 2 apple snails, and 3-5 corry cats
Source(s): 6 years of keeping fish, 2 years of owning a petshop - 1 decade ago
You need a 55 gallon minimum. The footprint (or width space) is very important. You need a huge filter, I would use either 2 Emperor 280s or an Emperor 400. You should make sure to keep the ph around 7 and temperature around 76-78. Good luck!
Source(s): I have 10 aquariums at home and own a fish store - How do you think about the answers? You can sign in to vote the answer.
- 1 decade ago
Go for a 18 inch X 36 ft X 15 inch (Height) Tank. This will save space and the most important thing is that Gold Fish swims in upward-downward direction. So they will get enough vertical-space.
Source(s): Fish-Owner - Anonymous1 decade ago
like a 60-100 gallon tank, because all of them need at least 20 gallons EACH.
- 1 decade ago
judge it by this
for every inch long your fish(s) is you need one gallon so a forty gallon tank should be enough
