Goldfish - tank question
08 January 2011, 07:49 PM
#1
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Goldfish - tank question
My youngest has been going on about having a goldfish for flippin 
ages,
we succumbed last week and bought a bowl... not, it has to be a tank now ??
When i was younger, you bought the fish and plonked it in the water..
Not so these days, you get a tropical type filter setup included (similar to a fluval type filter)
Now when i had a tropical tank, you set the fluval up so that it pumped the water back from a level higher than the water to make bubbles and move the water around.
The instructions for this little tank say to set it up below water and all it does is move the water around..
the question is how does this airate the water?
or should i set it up similar to the fluval type
Mart
ages,we succumbed last week and bought a bowl... not, it has to be a tank now ??
When i was younger, you bought the fish and plonked it in the water..
Not so these days, you get a tropical type filter setup included (similar to a fluval type filter)
Now when i had a tropical tank, you set the fluval up so that it pumped the water back from a level higher than the water to make bubbles and move the water around.
The instructions for this little tank say to set it up below water and all it does is move the water around..
the question is how does this airate the water?
or should i set it up similar to the fluval type
Mart
08 January 2011, 08:01 PM
#2
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Not all filters are set up to sit out of the water, but a quick google will set you straight.
If you don't mind me asking, what size is your 'little tank' as goldfish as a general rule need HUGE tanks because of the waste (but I assume you know this?)
1-2 goldfish benefit best from aprox 200l of water. A large amount I know!
If you don't mind me asking, what size is your 'little tank' as goldfish as a general rule need HUGE tanks because of the waste (but I assume you know this?)
1-2 goldfish benefit best from aprox 200l of water. A large amount I know!
08 January 2011, 11:51 PM
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How big is the tank, anything under about 20l shouldn't even have fish in it. I have a 35l and all I keep in it is fry.
The filter will still airate the water below the water level a little, but probably not enough for what's needed.
Is the filter suitable to be above water,
I have the smallest filter from the fluval range in my fry tank, but it has to be submerged, so I use a bubble tube in there also to get some good airation also. I have the air flow restricted otherwise tbe fry cannot even swim in a straight line.
The filter will still airate the water below the water level a little, but probably not enough for what's needed.
Is the filter suitable to be above water,
I have the smallest filter from the fluval range in my fry tank, but it has to be submerged, so I use a bubble tube in there also to get some good airation also. I have the air flow restricted otherwise tbe fry cannot even swim in a straight line.
09 January 2011, 12:03 AM
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There`s a misconception that `bubbles` create O2 in a tank. What causes aeration is the `disturbance` of the waters surface. You need to direct the outlet as close to the waters surface in order to create the most movement of water. Adding a powerhead is a good way to create aeration too.
Just for reference -
At the surface level, water and air undergo a natural exchange of gases. Oxygen goes from the air to the water, and carbon dioxide goes from the water to the air. This is how the oxygen that fish breathe enters their habitat and how the carbon dioxide that they produce by respiration is removed from their habitat.
When the surface of aquarium water is disturbed, the rate of gas exchange between the water and the air is increased; more carbon dioxide is released into the atmosphere and more dissolved oxygen is taken by the water. The surface tension of the water must be broken for sufficient gas exchange.
Fortunately, creating surface agitation is easily done with aeration, or pumping air into the water so that it forms bubbles. The bubbles rise to the surface and burst, thus breaking the surface tension.
This also creates water movement in the tank, in effect stirring the aquarium ever so slightly, so that all of the materials and compounds in the water -- both the beneficial ones and the harmful ones -- are evenly distributed throughout the tank.
Just for reference -
At the surface level, water and air undergo a natural exchange of gases. Oxygen goes from the air to the water, and carbon dioxide goes from the water to the air. This is how the oxygen that fish breathe enters their habitat and how the carbon dioxide that they produce by respiration is removed from their habitat.
When the surface of aquarium water is disturbed, the rate of gas exchange between the water and the air is increased; more carbon dioxide is released into the atmosphere and more dissolved oxygen is taken by the water. The surface tension of the water must be broken for sufficient gas exchange.
Fortunately, creating surface agitation is easily done with aeration, or pumping air into the water so that it forms bubbles. The bubbles rise to the surface and burst, thus breaking the surface tension.
This also creates water movement in the tank, in effect stirring the aquarium ever so slightly, so that all of the materials and compounds in the water -- both the beneficial ones and the harmful ones -- are evenly distributed throughout the tank.
Last edited by ScoobySteve69; 09 January 2011 at 12:05 AM.
09 January 2011, 12:04 AM
#6
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I use a Fluval U2 in a 65litre tank with airstones and my 2 little goldfish seem very happy and the water levels are 100%. I would like a bigger tank though soonish as I don't want to stunt the growth of my Blackmoor.
09 January 2011, 12:11 AM
#7
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There`s a misconception that `bubbles` create O2 in a tank. What causes aeration is the `disturbance` of the waters surface. You need to direct the outlet as close to the waters surface in order to create the most movement of water. Adding a powerhead is a good way to create aeration too.
Just for reference -
At the surface level, water and air undergo a natural exchange of gases. Oxygen goes from the air to the water, and carbon dioxide goes from the water to the air. This is how the oxygen that fish breathe enters their habitat and how the carbon dioxide that they produce by respiration is removed from their habitat.
When the surface of aquarium water is disturbed, the rate of gas exchange between the water and the air is increased; more carbon dioxide is released into the atmosphere and more dissolved oxygen is taken by the water. The surface tension of the water must be broken for sufficient gas exchange.
Fortunately, creating surface agitation is easily done with aeration, or pumping air into the water so that it forms bubbles. The bubbles rise to the surface and burst, thus breaking the surface tension.
This also creates water movement in the tank, in effect stirring the aquarium ever so slightly, so that all of the materials and compounds in the water -- both the beneficial ones and the harmful ones -- are evenly distributed throughout the tank.
Just for reference -
At the surface level, water and air undergo a natural exchange of gases. Oxygen goes from the air to the water, and carbon dioxide goes from the water to the air. This is how the oxygen that fish breathe enters their habitat and how the carbon dioxide that they produce by respiration is removed from their habitat.
When the surface of aquarium water is disturbed, the rate of gas exchange between the water and the air is increased; more carbon dioxide is released into the atmosphere and more dissolved oxygen is taken by the water. The surface tension of the water must be broken for sufficient gas exchange.
Fortunately, creating surface agitation is easily done with aeration, or pumping air into the water so that it forms bubbles. The bubbles rise to the surface and burst, thus breaking the surface tension.
This also creates water movement in the tank, in effect stirring the aquarium ever so slightly, so that all of the materials and compounds in the water -- both the beneficial ones and the harmful ones -- are evenly distributed throughout the tank.
Which website did you scam that from? Lol
My bubble tube is curled up inside a divers helmet! It sounds awful, but it stops it bubbling too hard.
Even with the restrictor (which is a blob of blu tak) it's still a bit bubbly in there!
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09 January 2011, 12:15 AM
#8
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can you not just add a wee valve to control the airflow? thats what i did to mine.
09 January 2011, 12:17 AM
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09 January 2011, 12:21 AM
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I knew what I meant, just thought the point would be better made and worded better if I "scammed" some accurate info from a proper source like http://animals.howstuffworks.com/pet...equipment5.htm
09 January 2011, 12:26 AM
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I knew what I meant, just thought the point would be better made and worded better if I "scammed" some accurate info from a proper source like http://animals.howstuffworks.com/pet...equipment5.htm
09 January 2011, 08:17 AM
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09 January 2011, 09:25 AM
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In there is 10 cardinal tetras, 5 cherry barbs, 4 golden barbs, 4 zebra danios, two rainbow fish, 2 mollys, 15 guppies and two gibbys.
In a few weeks we will get some corydoras, but we have ordered some new plants, so I wait until they are all in.
09 January 2011, 12:17 PM
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