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Advice on Goldfish

julieg Avatar
5y, 10m agoPosted 5 years, 10 months ago
Anybody know much about goldfish, i had a fancy goldfish and a bog standard goldfish in just a normal goldfish bowl,quite happily swimming around in just tapwater and then we decided to buy an aquarium,not a big 1 just a 21 litre.So we got the aquarium along with a black goldfish and a plec if thats the correct name for itand also a pump and light.They have swam around it in quite happily for around 3 weeks now and now the bog standard goldfish and fancy goldfish dont seem to look well,they just lie on bottom of tank,looking really glum and hardly moving,they will take a swim for a few seconds now and again,the only thing i can think of is that they have been eating the plecs food but the guy in the petstore told me at the time of buying them that the plec food wud do them no harm.Oh and also the water has alll been treated with correct solutions,so if anybody has any ideas please let me know.sorry its so long winded
julieg Avatar
5y, 10m agoPosted 5 years, 10 months ago
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banned#1
ammonia poisoning? Do a 90% water change and you should see an improvement, treat the water and temperature match it.

Do you have a filter fitted to the tank?
#2
Have you got a heater in the tank?
#3
For a start I know you have had them together before but you should never mix fancy goldfish with normal. The fancy goldfish have flowing fins that normal goldfish will nip at and bite.
Secondly you have seriously overloaded that tank, 21 litres isnt alot of water at all. How often do you do water changes? How much water? what chemicals are you using? What substrate do you have in the bottom?
Im afraid that the smaller tanks tend to be harder to maintain and getting the levels right can be hard. Do you have a testing kit? Goldfish are messy eaters and very dirty fish, they take alot more looking after than people think.
1 Like #4
FYI your tank is only really suitable for one fish.
#5
definitely what temp is the water and what type of plec was it a bristlenose?
1 Like #6
Yes you should only really have one fish in that tank and defo not a plec, they grow up to around 2 foot! also the plec should be kept in heated water, more suited to a tropical tank set up.

The fish being ill is probably due to ammonia levels being high due to overloading the tank, try changing the water, although I'd only remove and replace around 50% to start with.

Did you cycle the tank when you first bought it?
#7
Your ammonia levels are going to be through the roof! Your tank is seriously overloaded.
As caz1cool said you need to do a water change but try not doing too much (about 50% is right) because too much can come as a shock to them and do more bad than good as well!
#8
Yeah 50% is maybe a bit much. I'm assuming you got a filter with the tank when you brought it? What type of filter is it? Under gravel?
#9
Your tank is way to small for goldfish they grow very big in the end they will just get ill because of the water quality. The fish shop have given you very bad advice. I would go on ebay and find yourself a bigger tank around 180 litres they go very cheap. If you cant do that take the fish back to the shop and the plec should be in a warm water tank.
banned#10
You must change at least 90%. Ammonia at levels over .25% are highy toxic to fish, you must get the level down.

Clicky
#11
I haven't long moved my pleco into my 5ft tank. Just moved it out of my 3ft tank as it outgrew that one. My goldfish that I rescued from the touring fair are about 5 inches long now, I've had them a few years.
#12
U know i wish i hadnt bothered now buying the tank,feel like i have been badly advised at the shop,they told me a plec was fine to go in the coldwater tank.And yes i have got a filter its the type that sits just below the water at the top of the tank.I had been told to change the water once week with removing 20% and replacing again.What do u think i shud do a week replace 50% a week because of the 3 fish i have because i really do not want a bigger tank.i do have a goldfish bowl which i could put 1 in i suppose.They dont tell u how hard it is to look after goldfish at the petstores when u buy them,i thought i was being kinder to tellwhen in fact it was the opposite,just need to get them fighting fit again now.
#13
Well to be honest i have just put them in my goldfish bowl for now till i get the tank sorted,as 2 of em looked at deaths door,and i thought ive got nothing to lose.they r swimming a little more now as well.
banned#14
LOL if your going to change 90%+ you might at well change all of it and risk the sudden temp change killing them


Here´s a novel idea, match the temperature of the water coming out, DUH.
#15
just noticed on the box the tank came in that its suitable for 4 goldfish measuring no more than 3-4cm which is around what my fish are,so what to u believe
banned#16
OK tell me how your going to heat 4½ gallons of tap water, a large saucepan maybe?


Are you seriously saying you can´t work that out?

I have a 125ltr tank for the last 10 years and all water changes are temperature matched.

Edited By: toshapetriji on Jan 21, 2011 16:45
#17
julieg
just noticed on the box the tank came in that its suitable for 4 goldfish measuring no more than 3-4cm which is around what my fish are,so what to u believe

Ignore what it says on that box. With a combination of water changes etc you may be able to keep that many fish in a tank of that size but its not good for the fish and it will stunt their growth for sure. They will eventually die as they out grow the tank.
A simple google search of "21 litre tank how many fish" will bring up many results that side with everything that has been said in this thread and not the side of the box.
#18
Ive had a juwel vision 260 litre marine setup and never found it hard getting water to the right temp.
We got the water direct from the local fish shop in our three large containers, I had my heater in the tank and two extra that i put into the containers to get it to the right temp. Easy enough to do whatsThePoint.

Edited By: dh058977 on Jan 21, 2011 16:52
#19
Add a shot of whisky to the water and they'll move.











Worked for my dad!
#20
could they be eating rotting bits of food in the gravel?try a quarantine tank wih tap water,float it in the tank till the temps match,then move the sick fish into it to see if any they cheer up a bit....
#21
I really wouldnt take any advice from mainstream pet stores (Pets at home etc) they can be terrible. Pretty much what everyone here has said, too many fish too small a tank. If you want to be really kind to the fish but want to keep the tank take back the plec and just keep 1 goldfish.

The filter you have will eventually build up bacteria which will eat the ammonia which your fish produces. However this can take some time and in a normal setup i would leave the tank empty until the process is finished (Its commonly know as "Tank Cycling" google it).

If you do a drastic water change make sure the temperature is the same as the water in the tank first and keep the filter in a bucket of the old tank water until the original tank is ready.
#22
it you have move them back to the bowl you need to also add the filter if you dont the bacteria will die
#23
julieg
just noticed on the box the tank came in that its suitable for 4 goldfish measuring no more than 3-4cm which is around what my fish are,so what to u believe


My goldfish were that size when I had them and that was around 5 years ago. The biggest one is about 5 inches long now.

I'd take him back to the shop and complain as they've definitely given you bad advice.
Plecos are tropical fish too and should be in a heated tank. My pleco is about 7 years old and is about 7-8 inches long. He outgrew my 3ft tank so is now in my 5ft tank.
suspended#24
I've had 2 goldfish in a tank roughly the size of yours for around 5 years now. The filter thing seems to take up a fair bit of the tank but they seem happy enough. They haven'tgrown to the 5 inches that was previously mentioned though. I change the water 50/50 every few weeks and it works for me.
suspended#25
Works fine for them, size isn't everything.
#26
You clearly know nothing about fish. As ive already said they will survive in any size tank providing the levels are ok (with water changes) but it doesnt mean they are healthy. Their growth will be stunted and their lifespan shortened. It doesnt "work for them" they just have no other option!

Hissy Miss
Works fine for them, size isn't everything.
Hissy Miss
I've had 2 goldfish in a tank roughly the size of yours for around 5 years now. The filter thing seems to take up a fair bit of the tank but they seem happy enough. They haven'tgrown to the 5 inches that was previously mentioned though. I change the water 50/50 every few weeks and it works for me.
suspended#27
Well had them for 5 years they swim about happy, nice shiny coats and come up and interact when you put your hand in the tank, which is no doubt something else you wouldn't do. Sometimes people who think they know it all talk through a hole in their backside.
#28
And why exactly would I not put my hand in my tank? I had fire shrimps that loved walking across your hands.
#29
Hissy Miss
Well had them for 5 years they swim about happy, nice shiny coats and come up and interact when you put your hand in the tank, which is no doubt something else you wouldn't do. Sometimes people who think they know it all talk through a hole in their backside.

Shiny coats? lol are they dogs? Ive already said they will live in poor conditions (think of the tons of over stocked tanks everywhere!) but that doesnt mean they are healthy!
suspended#30
Eh shiny skin or whatever is a sign of a healthy fish, so much for your expertise?!!?

And I thought you wouldn't put your hand in incase a grain or dirt under your nail polluted their water lol.

I know my fish are happy and healthy, you go back to reading wiki or whatever and convince yourself otherwise.
#31
Apparently keeping the fish in too small a tank, shortens their life span because they can't grow as big as they should, however they keep growing internally, which eventually kills them. Goldfish if kept well can live 20+ years
suspended#32
LOL, so basically everyone saying the fish are unhealthy etc are talking **** because a fish hasn't told them so?

Is it the same for cats, dogs, gerbils etc?

Always knew vets were just an absolute rip off!
#33
You've managed to keep two goldfish alive in poor conditions for five years and you think you know everything! I've had fish for years, I've got koi, goldfish, had tropical and marine but even I don't know a lot. I know enough about fish to know how much space they need though. And the op's tank is overstocked.

At no point have I claimed to knowing it all.
#34
And why exactly would I not put my hand in my tank? I had fire shrimps that loved walking across your hands.


I had a bristlenose plec that would only eat cucumber if i hand fed it!

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