How Many Fancies In A 45g?

I currently have one of each of the following in a 45g.
(I have enough filtration for a 120 gallon tank and I'm doing 25-40% weekly water changes)

Ryukin
Black Moor
Fantail

I'd like to add one more Fantail, but Aqadvisor says I'd be at 120%
Are 4 Goldies too many for my tank?

 

You can only keep one fancy in a 45g you either need more tanks or you need to rehome them....

 

I think the recommendation is 20 gallons for the first and 10 gallon for each additional. So 3 and a half.

 

I think the recommendation is 20 gallons for the first and 10 gallon for each additional. So 3 and a half.

(And others reccomend 20 gallon per goldie!)

I do think you could add another, but do keep in mind they have the potential to grow big and 3 adult goldies will easily fill out a 45g tank. I do suggest holding off, unless you happen/planning to upgrade in the future IMO.

 

I currently have one of each of the following in a 45g.
(I have enough filtration for a 120 gallon tank and I'm doing 25-40% weekly water changes)

Ryukin
Black Moor
Fantail

I'd like to add one more Fantail, but Aqadvisor says I'd be at 120%
Are 4 Goldies too many for my tank?

You could do four, but will need to up your water change schedule. With your current water change schedule of one change per week with 20-40% water replaced, what are your nitrate readings ?

 

I would not add any more to your tank as they do get big and putting more in the tank will stunt there growth I would get a bigger tank or re think your fish choices for the well being of the fish

 

I think the recommendation is 20 gallons for the first and 10 gallon for each additional. So 3 and a half.

I would disagree, maybe you could do that with common goldies, but fancy goldfish grow much bigger, you could technically do three but you would need to do water changes much more often.. But the general rule of thumb to follow for a safely populated goldie aquarium or outdoor pond is to plan at least 20 gallons of water per goldfish...

 

I would disagree, maybe you could do that with common goldies, but fancy goldfish grow much bigger, you could technically do three but you would need to do water changes much more often..

I think you have that the other way around. Common goldfish can get a foot long. Fancies tend to only get softball size.

 

No I think you have them mixed around

Common goldfish tend to grow to a foot long in the wild, but in a home aquarium they'll tend to stay around 1-2 inches long.

The best way to maintain your goldfish's proper quality of life is to provide a minimum 48-gallon-tank for the first goldfish and 14 more gallons for each additional fish to give them plenty of room to swim and grow. Larger bodied fish create far more waste and therefore require more water volume.

Consider full size for the particular type of goldfish, subtract some space for plants, decor, filter systems etc etc...

 

Why would a properly cared for fish be smaller in a proper tank then the wild or a pond?

 

Why would a properly cared for fish be smaller in a proper tank then the wild or a pond?

If the tank is smaller than needed the fish would be stunted and therefore would slow down or completely stop growing, i'm not looking for an argument,I'm just hoping the op makes the correct decision and i'm urging them to do that by providing reasons for my facts...


And the largest goldfish ever recorded was 1.25 feet long, so no, they don't normally get to a foot long, I apologise for me saying that...

 

You could do four, but will need to up your water change schedule. With your current water change schedule of one change per week with 20-40% water replaced, what are your nitrate readings ?

Thank you. I haven't checked my nitrates yet. Will do so this week.

Thank you everybody. I appreciate all the responses, even the ones that differ from each other. I think I'll stick with 3 and/or try to get a bigger tank. Even with 3 it looks like I need to up my water changes... maybe two changes per week.

 

Thank you. I haven't checked my nitrates yet. Will do so this week.

I hope this helps settle the conflicting info in the thread.

 

I hope this helps settle the conflicting info in the thread.

Thank you. According to their calculator I can have 3 fancies in my tank. I think I'll stick with that, although, I'm looking at a 75 gallon tank on Facebook Marketplace right now

 

Thank you. According to their calculator I can have 3 fancies in my tank. I think I'll stick with that, although, I'm looking at a 75 gallon tank on Facebook Marketplace right now

Just keep in mind you already have other goldfish as well so that takes away from the space available for fancies. I would say get the 75 gallon then worry about more fancies..just my opinion.

 

I think when considering tank size for goldfish, gallon size is less important than like, actual square footage. I mean, yeah, you could live in a bathroom-size room for the rest of your life, if it got cleaned and fresh air all the time... but, ugh... -_-

I had 2 young fancies in a 30-gallon, which according to what I've read, is perfectly fine... and then lucked into a 75-gallon. It's four feet long, 21" high, and 18" wide. My lazy, 10-month old 6" demekin(telescope eye) fish with larg-ish fins, was like a NEW FISH in all that room... she zooms around everywhere.

I only plan on putting a 3rd fish in there eventually... MAAAYBE a 4th depending on how big everybody gets (but probably not) I love that they have this whole "world" to explore. It also makes them feel like they're in the room with us, in a way? My girls are very outgoing and seem to enjoy person-company. Their behaviors indicate to me that having a tank 2.5x the size of their old one is very good for their wellbeing, they 'play' a lot more.

I will tell you for sure, keeping a big tank clean is SO MUCH easier than a small one. Think about a toddler in the back seat of a car with loads of snacks and books, vs the same toddler in a daycare size playspace. heh.

My demekin girl might get to be a pretty hefty fish; she's already so big compared to her tank mate. You just don't know what might happen with 'pet store quality' fish with mixed genetic lines and unknowable beginnings.

Edit: To be honest you might not need to up your water changes, it just depends on your own tank. Every fish tank is its own world; the best thing to do is monitor your water quality with a good testing system (like the apI freshwater master kit) and see what YOUR own tank's system is like. The way I had my cycle and filter set up, I was able to go THREE WEEKS (!) without a water change in my 30G to take down nitrates. Mostly I do water changes just to do a gravel cleaning and 'refresh' things. But it's not even every week.

 

I currently have one of each of the following in a 45g.
(I have enough filtration for a 120 gallon tank and I'm doing 25-40% weekly water changes)

Ryukin
Black Moor
Fantail

I'd like to add one more Fantail, but Aqadvisor says I'd be at 120%
Are 4 Goldies too many for my tank?

Hello Tag...

It takes many months if not several years for a few fancy Goldfish to outgrow a 45 gallon tank. I've kept these fish for some time and they grow, but not as fast as some will lead you to believe. If you start with young fish, two in a 15-20 gallon tank is fine and then figure on one young fish for every 5 gallons after that. I'm currently growing out about 20 young Goldfish in a 75 gallon tank and yes, they're growing, but they'll have plenty of room for quite a while.

Filtration is necessary, but you should be removing and replacing at least half the water in this tank every week. Goldfish are heavy waste producers, much more so than your standard aquarium fish and need larger, weekly water changes. Gradually work up to changing out 50 percent or more every week, no excuses.

Old

 

21 Different Types of Goldfish Breeds (and How to Recognize Them) Read the Oranda section...

 

Per my dads friend who has been breeding Goldfish for 50 years, this is what he said.

“Any type of Goldfish can reach extreme lengths when kept in extremely optimal conditions. The problem with records between these two is that commons and comets are usually kept in ponds, therefore they aren’t being caught and measured, let alone recorded by the world record books. I have had many Comets and Commons reach over 20 inches, never any fancies though. Though I have had fancies around 15-16 inches, but not many. I would say without a doubt, Comets and Commons have an average size that is much larger than fancy Goldfish.”

He also pointed out that in the Guinness book of world records, it doesn’t specify what type of Goldfish, no weight, and no pictures.

OP, I asked about your situation and he said that 3 is as many as you should do, and an upgrade would do them many favors when they get larger.

 

Per my dads friend who has been breeding Goldfish for 50 years, this is what he said.

“Any type of Goldfish can reach extreme lengths when kept in extremely optimal conditions. The problem with records between these two is that commons and comets are usually kept in ponds, therefore they aren’t being caught and measured, let alone recorded by the world record books. I have had many Comets and Commons reach over 20 inches, never any fancies though. Though I have had fancies around 15-16 inches, but not many. I would say without a doubt, Comets and Commons have an average size that is much larger than fancy Goldfish.”

He also pointed out that in the Guinness book of world records, it doesn’t specify what type of Goldfish, no weight, and no pictures.

OP, I asked about your situation and he said that 3 is as many as you should do, and an upgrade would do them many favors when they get larger.

Hello Aqua...

Goldfish that live to be this size require near perfect diets and water conditions. Fish that live this long and get to be this size are rare. They're like people who live to be 100. Some do under the right conditions. However, most don't.

Old

 

Hello Aqua...

Goldfish that live to be this size require near perfect diets and water conditions. Fish that live this long and get to be this size are rare. They're like people who live to be 100. Some do under the right conditions. However, most don't.

Old

And good genetics! (I personally would love to see some pics of mammoth goldies, if your dad's friend has the chance to send them your way!)

 

Common goldfish tend to grow to a foot long in the wild, but in a home aquarium they'll tend to stay around 1-2 inches long.

Welllll...it's probably more accurate to say that they will only live long enough to reach 1-2 inches; then they tend to die. Goldfish are subjected to deplorable living conditions even more often than most other fish (which is saying a lot!), so the "average" lifespan and max size of a captive goldfish is not an accurate representation of what their actual potential is.

A fish that lives a year or two, and reaches an inch or two...lived a short, unhealthy, miserable existence under poor care, and should not be pointed at and held up as an example of how to maintain this species.

 

I never said that it was a good example of how to keep that species, I was simply stating that under the improper care Aka a small tank, the goldfish will not live long, and will not, grow to the size that it can grow.

I was stating a fact and hoping that the op would make the right choice, it's at this point in a thread I leave it alone and let what happens, happen.




C&M.

 

Per my dads friend who has been breeding Goldfish for 50 years, this is what he said.

“Any type of Goldfish can reach extreme lengths when kept in extremely optimal conditions. The problem with records between these two is that commons and comets are usually kept in ponds, therefore they aren’t being caught and measured, let alone recorded by the world record books. I have had many Comets and Commons reach over 20 inches, never any fancies though. Though I have had fancies around 15-16 inches, but not many. I would say without a doubt, Comets and Commons have an average size that is much larger than fancy Goldfish.”

He also pointed out that in the Guinness book of world records, it doesn’t specify what type of Goldfish, no weight, and no pictures.

OP, I asked about your situation and he said that 3 is as many as you should do, and an upgrade would do them many favors when they get larger.

Thank you! I've settled on keeping 3 in this 45g tank and hope to upgrade within the year!

 

I never said that it was a good example of how to keep that species, I was simply stating that under the improper care Aka a small tank, the goldfish will not live long, and will not, grow to the size that it can grow.

I was stating a fact and hoping that the op would make the right choice, it's at this point in a thread I leave it alone and let what happens, happen.




C&M.

Hey, just wanted to give my $0.02... You did say commons get smaller, and personally I believe you should either stand by exactly what you stated or admit you made a mistake. It's fine to make a mistake, we all do. For example, my entrace to the hobby was a common goldfish in a bowl. Did she stay 2"? She sure did! Did she almost die? She sure did! Is she rapidly growing after getting a larger tank and now over 7" and growing about 1" every 2 months? She sure is!
Fancy goldfish can also get absolutely massive, I do agree with you on that. However, ryukins and fantails normally stay around 6" or a little over, while black Moors normally get 8" or smaller. I'm sorry you feel like you're being attacked, but you did state commons are smaller than fancies, which is incorrect. Also, that last sentence of yours sounds like a threat, not sure you meant it to sound that way, but it is very aggressive. And hey, welcome to the forum!

OP, I think you made a good decision sticking to the three. Personally, I do believe you could have gone with more, but why add all the extra work. I hope your goldfish grow up nice and healthy!
Edit: I am in no way, shape or form meaning to sound rude or sarcastic, but tone doesn't carry over the internet . I think that in of itself leads to some issues. Truly don't mean to be rude or abrasive, and I hope it doesn't read that way.

 

I've been in the forum since last year, and in the hobby for five years... But hey, thanks for welcoming me to the forum.

 

I've been in the forum since last year, and in the hobby for five years... But hey, thanks for welcoming me to the forum, some people on here have some anger issues but I still love it...

My bad, I just didn't remember seeing you around before!

 

Any thoughts on adding 5 White Cloud Mountain Minnows (or Zebra Danios) to my mix for dither purposes? The Fantail is harassing the Black Moor quite a bit suddenly. I realize they might get eaten eventually, but I'm willing to risk it to give my Black Moor some peace.

 

Either should work. Both are pretty fast so the chance of getting eaten would be low. It could happen though.

 

You could. But be prepared for them to end up as snacks. Maybe a school of giant danios or if you can source them, Murray River rainbows (can also be known as aussie rainbows)

 

*geeenerally* what I've read is that it's not a good idea to mix fancy goldfish with other kinds of fish. The harassment may be due to breeding behaviors getting started. Keep a close eye on everyone and make sure there are safe spaces for them to get away from each other.

 

Any thoughts on adding 5 White Cloud Mountain Minnows (or Zebra Danios) to my mix for dither purposes? The Fantail is harassing the Black Moor quite a bit suddenly. I realize they might get eaten eventually, but I'm willing to risk it to give my Black Moor some peace.

Hello Tag...

The White Cloud Minnow is a very good idea. They're tolerant of cooler water. It's doubtful they'd be a snack for your fancy Goldfish, the Minnows are just too fast. I have some of these minnows with some Calicos, an Oranda and some Veiltail fancies in a well planted 38 gallon tank. As long as you keep all the fish well fed, the minnows will be fine.

Old

 

*geeenerally* what I've read is that it's not a good idea to mix fancy goldfish with other kinds of fish. The harassment may be due to breeding behaviors getting started. Keep a close eye on everyone and make sure there are safe spaces for them to get away from each other.

I agree, it's generally not a good idea, but it primarily applies to competition and sensitive body parts. Mainly like how you wouldn't keep a celestial goldfish with those huge eye bubbles with a large oranda, as they may get popped. With these guys, it should be okay, sincr they grow to similar sizes and have similar levels of durability.