Goldfish space requirements?

  • We are currently upgrading MFK. thanks! -neo
R

reeb666

Feeder Fish
Mar 24, 2013
2
0
0
Pennsylvania
I've been looking for a new tank for my goldfish (one comet, one common) for a while now an I've heard various things. Most people of average knowlegeability say that a 75 gal is ok for the two of them; not ideal, but sufficient. Others have said that they need a 2x2x4 120 gal so that they have more room to turn and such. I would love to hear some more feedback about whether or not the 75 will do.

Might I add: putting them in a pond is not an option. I've talked to everyone in my town who has a pond, and they all either don't want fish or their ponds are unacceptable for fish use (too shallow, no shade, etc.)
 
Bigger is always better... imo you can get away with the 75 if your religiouse about water changes ( 25-50% every week, maybe more depending how your nitrates looke ct at the end of the week.) and running good filtration.. and do not add anymore fish. will a 120 be better? absolutely.. the other option if finances are an issue.. may not look as nice but livestock water troughs make great indoor ponds and you can get the 300 gallon rubbermaid for usually under 300$ compared to what a 120 or such tank would cost. aestetics almost always costs more. =)

I found a good general rule of thumb for the fancy goldfish breeds is 40gallons per fish, but I have seen a few that should really be in a 75. comets ect tend to get longer but stay more streamline.
 
Redearsunfish said:
Respectfully, 30 gallons goldfish is more than enough. A 75 is fine. No more fish, but fine. And super pump your filtration.
Click to expand...

You're always respectful silly. and why I said what I did is I had a panda oranda in my 40breeder originally and he got as big as a softball at least and looked "cramped" in the tank. I'm sure some goldfish stay smaller but I def always ere on the side of caution. maybe mine was also a mutant... he was only 7yrs old when he passed on from a swim bladder issue =( But i haven't kept goldfish as more then feeders in a loong time.
 
30per fish is fine for the fancy gold fish..but the comets are torpedo shaped and need room to zoom around ..bigger is always better

they can reach about 12 inches so..you want your tank to be deeper than 12..I believe the 75s are 18 inches ..should be ok large water changes and bump up your filtration until you think you have enough...and add some more!

if a filter says its good for a 100g tank..half that and put it on that size tank. 100g filter for max size tank is a bout 50g for me that would be a bit low on filtration but its a better rule of thumb than going by what the box says.
 
Kaosu said:
30per fish is fine for the fancy gold fish..but the comets are torpedo shaped and need room to zoom around ..bigger is always better

they can reach about 12 inches so..you want your tank to be deeper than 12..I believe the 75s are 18 inches ..should be ok large water changes and bump up your filtration until you think you have enough...and add some more!

if a filter says its good for a 100g tank..half that and put it on that size tank. 100g filter for max size tank is a bout 50g for me that would be a bit low on filtration but its a better rule of thumb than going by what the box says.
Click to expand...

You don't need to sell me on over filtration. I prefer 30-40 times per hour turn over.
 
Yes 75s are plenty for two although ive seem some comet grows HUGE. If you can go bigger always go big at first.


Sent from my iPhone using MonsterAquariaNetwork app
 
I had a common goldfish, the pond type, who survived a piranha feeding so I kept him. He grew so dam big in my 60g (75 US?) I thought it was too small for him. Luckily I found a pond and he lived happily ever after. He'd have some tales to tell over the campfire I bet.
 
Awesome, thanks all :) I'm going to go with a super filtered 75 gal, since price is definitely an issue and I don't want to leave them in their current tank for as long as it would take to acquire a 120.
 
You must log in or register to reply here.
MonsterFishKeepers.com
Top Bottom