Go Back   Aquarium Advice - Aquarium Forum Community > Freshwater > Freshwater & Brackish - Coldwater, Native Fish & Ponds
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 09-23-2019, 03:10 AM   #1
Aquarium Advice Addict
 
venymae's Avatar
 
Join Date: Dec 2013
Location: Kansas, US
Posts: 1,075
How long could I keep 3 fancy goldfish in a 30 gallon before needing to upgrade?

I am wanting to do goldfish, and I have a 30 gallon ready to go. I am wanting 3 fancy goldfish, just going to get cheap little derps from the local place. How fast will they outgrow a 30? My father has a 55 gallon, but I'd need to drive down to get it, reseal it, and get a new stand. He doesn't live super close and I've got a life besides fish, so that might take a while. Just wanting to look at my options. After that I'd be upgrading to a 90, which I will just need to buy. I appreciate your input and experiences!
__________________

venymae is offline   Reply With Quote
Old 09-23-2019, 07:16 AM   #2
Aquarium Advice Addict
 
BBradbury's Avatar
 
Join Date: May 2011
Posts: 4,848
Your Goldfish

Quote:
Originally Posted by venymae View Post
I am wanting to do goldfish, and I have a 30 gallon ready to go. I am wanting 3 fancy goldfish, just going to get cheap little derps from the local place. How fast will they outgrow a 30? My father has a 55 gallon, but I'd need to drive down to get it, reseal it, and get a new stand. He doesn't live super close and I've got a life besides fish, so that might take a while. Just wanting to look at my options. After that I'd be upgrading to a 90, which I will just need to buy. I appreciate your input and experiences!
Hello ven...

If the Goldfish are fairly young, under six months or so, they'll be fine in 30 gallons of water for several months. I've been keeping Goldfish for some time and have found that most won't outgrow their tank. I've kept 18 in a 75 gallon tank for more than two years and with the exception of one larger fish, the rest have stayed under three inches. Goldfish are heavy waste and oxygen users, so you'll need to remove and replace most of their tank water every few days. I change out half or more every week.

B
__________________

__________________
"Fear not, my young apprentice. Just change the tank water."
BBradbury is offline   Reply With Quote
Old 09-24-2019, 01:55 AM   #3
Aquarium Advice Addict
Community Moderator
 
Autumnsky's Avatar



POTM Champion
Tank of the Month Award
 
Join Date: Apr 2012
Location: Northern Colorado, USA
Posts: 13,140
Kept in optimum conditions fancy GF can grow very large. The pics are a year difference. So they can grow really nicely and pretty quickly.

By ready to go you mean cleaned up and ready to put some fish in?

Or have you cycled the filter for 6-8 weeks monitoring the changes in ammonia, nitrite and nitrate to grow a colony of beneficial bacteria and it has completed the nitrification cycle and is ready to house fish?

Why fancy goldfish require big tanks- visual perspective

There is quite a big amount of work required to take a tank of 3 fancy GF in a 30 to go through a fish in cycle.

Mainly because of the amount of waste these guys can make from fish poo and uneaten food building up.

A 90G would be appropriately sized tank for them. Filtration is another key factor.

Unless you can set up a continuous water change system you would need filtration with a change over of minimum 10 times the quantity of tank water.

30 gallon would need a rate of flow per hour of 300 gph minimum. A good filter is a Aquaclear 70 has 300 gallons per hour and the Aquaclear 110 is 500 gph and you can adjust their flow so the bigger one would be able to grow with your fish better.

This is a great resource for learning about the basics for fish - also with links for fish in (the tank) cycling or a fishless cycle getting the beneficial bacteria in the tank before the fish go in.
Guide to Starting a Freshwater Aquarium - Aquarium Advice
__________________

New to FW fish? First tank in a long time or EVER??? Need some info on keeping fish?
Start here - Aquarium Advice Article
https://www.aquariumadvice.com/guide...ater-aquarium/

Community Rules
https://www.aquariumadvice.com/forum...ork&page=rules

FW & SW
Favorite tank right now -5G Spec V Snails & Betta
Autumnsky is offline   Reply With Quote
Reply

Tags
30 gallon, fancy, fancy goldfish, fish, gallon, gold, goldfish, long, upgrade

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
How many fancy goldfish can fit in a long 55 gallon tank alittlefishy Freshwater & Brackish - Coldwater, Native Fish & Ponds 1 09-17-2017 05:44 PM
Why are you not supposed to keep fancy goldfish with comets? Chub Keeper Freshwater & Brackish - Coldwater, Native Fish & Ponds 11 08-06-2013 04:35 PM
What can I grow before needing CO2? malfist Freshwater & Brackish - Planted Tanks 5 06-01-2012 10:30 AM
How long do I have before a tank upgrade? Trena Saltwater Fish Only & FOWLR 3 05-13-2012 04:11 PM
Common goldfish & fancy goldfish coalcut Freshwater & Brackish - General Discussion 9 11-04-2011 09:51 AM







» Photo Contest Winners







All times are GMT -4. The time now is 12:57 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
×