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pygmy corydoras
January 9, 2013
4:49 pm
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george
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Hello. Today, I have seen, a small shoal of fish I liked at my local retailer. I asked what it was and he told me it was a group of pygmy corydoras. I have never kept corydoras before and am wondering how many liters they need, as well as the type of water they need. According to the answers I will get, I'm planning on maybe buying a new tank.

Regards, Ross. 

January 9, 2013
5:29 pm
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Graham Ramsay
Blairgowrie - UK
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Well they are pretty small. You can easily keep a self-sustaining group in a 24" tank as I did for many years. At times there were around 100 fish of various sizes but a group of 12 - 15 adults in a tank that size would be fine.

January 9, 2013
5:43 pm
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Rüdiger
Brunswick / Germany
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Welcome to SF Ross,

there are 3 species, which are often sold as pygmy corydoras. C. pygmaeus the actual pygmy cory and then C. hastatus and C. habrosus. They all require the same conditions. More info as to water parameters and tank size you'll find here.

I am keeping C. hastatus (first pic) and C. pygmaeus (second pic). Is one of them the one you've seen at the shop??

Corydoras-hastatus-003rez.jpgImage Enlarger

Corydoras-pygmaeus-001rez.jpgImage Enlarger

 

 

 

 

 

 

 

 

 

Regards

R.

If you must insist on living in a box ...... at least do your thinking outside.
January 9, 2013
5:47 pm
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george
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January 9, 2013
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" stands for gallons right? if so, i am afraid i am not going to be able to house them. Financially, i cannot permit myself such a tank, and my current tank only holds 15. I do not know if it is was good idea, but I bought 6 panda corydoras for these 15 gallons. Will they be alright in there, or should I replace them with another species (which yo could help me find)?

January 9, 2013
5:49 pm
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george
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January 9, 2013
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The fish I saw at the shop looked very much like the one in the first picture you showed. 

January 9, 2013
5:57 pm
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Rüdiger
Brunswick / Germany
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I am sure that the " are inches and not gallons Smile, which basically translates into a 15 gallon tank (60x30x30 cm).

Your 6 pandas will be fine in the 15 gal and you could even add a nice group of either of the three "dwarf cories" I mentioned. All three species do a lot more free swimming than your "normal" cory and choose their rest spots rather higher up too as you can see in the pic of C. hastatus. 

If you must insist on living in a box ...... at least do your thinking outside.
January 9, 2013
6:53 pm
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george
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January 9, 2013
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Oh good. Do you know which fish they do well with?

 

January 9, 2013
7:27 pm
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Rüdiger
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If you decide to put them in with the pandas I'd suggest a shoal of 10 of a smaller Nannostomus sp. e.g. N.  marginatus,which are usually readyly available. But then that tank would be stocked to about capacity. Alternatively there would be Paracheirodon spp. or Hyphessobrycon amandae.

Regards

R.

If you must insist on living in a box ...... at least do your thinking outside.
January 9, 2013
7:36 pm
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george
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January 9, 2013
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It's amazing how some people are just natural fishkeepers. Thanks Rüdiger!

 

January 9, 2013
11:59 pm
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Rüdiger
Brunswick / Germany
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You are most welcome.

But unfortunately I have to burst that bubble about the natural fish keeper. That is some 40 years of passion for the hobby, an unquenchable thirst for knowledge, plenty of work, innumerable setbacks, trial and error aproaches, a lot of money down the drain, seemingly stupid questions I had to ask at a time where not many people had the answers and a healthy portion of perseverance. By the way, I still do ask seemingly stupid questions then and again. Laugh

I am not saying this to blow my own trumpet but rather to suggest that with a bit of enthusiasm and research everybody can become a knowledgeable and good fish keeper or anything else for that matter. And how much easier it is these days what with the internet and all that. Wish we could have had it then. Smile

Regards

R.

If you must insist on living in a box ...... at least do your thinking outside.
January 10, 2013
8:42 am
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Matt
Málaga, Spain
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Hi Ross, and welcome on board.

To offer a different view, personally I wouldn't recommend dwarf cories or N. marginatus for a brand new tank as this one appears to be.

Are the panda corys currently the only fish in there, and what kind of cycling/maintenance regime are you running?

Cake or death?
January 10, 2013
11:29 am
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Rüdiger
Brunswick / Germany
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 Embarassed Oops, I missed that one. Embarassed

Of course Matt is right. I somehow assumed that tank to be mature and running for some time.Frown

 

 

If you must insist on living in a box ...... at least do your thinking outside.
January 10, 2013
5:42 pm
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george
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January 9, 2013
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Well, the tank isn't completely new. It's been running for at least 2 months now. It's an Aquadream 60 tank equipped witn a Mini Biobox 2 filter. As I didn't understand the cycling/maintenance question from Matt, I hope That will provide you with answers.

The panda corydoras aren't the only fish in the tank at the moment. I also have a few endler guppies. My local pet store told me, that for a tank this size, I should only buy males, as endler guppies are apparently very prolific. Is it true?

January 10, 2013
6:26 pm
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Plaamoo
Bellingham, Washington U.S.A.
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Hi Ross/George/?

If you truly don't understand cycling please research the subject, for the sake of your fish. I thought we had a sticky on the process but I can't find it?

January 10, 2013
6:58 pm
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Matt
Málaga, Spain
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Cake or death?
January 10, 2013
7:04 pm
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george
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January 9, 2013
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oh I do understand cycling. My tank is fully cycled. I don't understand what matt meant by cycling/maintenance regime. Water changes? Filter medium?

January 10, 2013
7:30 pm
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Eyrie
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"Cycling" is the process described in the link Matt provided whereby sufficently large colonies of bacteria are grown in the filter to reduce the potentially lethal ammonia produced by the fishes' natural metabolic processes to relatively harmless nitrAte which can be removed as part of your maintenance regime.

 

Your maintenance regime should involve a weekly test of the tank water for ammonia, nitrIte and nitrAte, followed by a water change of approximately 20-25%, although the presence of either ammonia or nitrIte in an aquarium with fish present will mean that you should do a larger change and an additional check and change each day until both are nil.

 

At each water change it is always a good idea to clean the filter media (ie the contents of the filter box which are typically sponges or ceramic rings) in the tank water which you have just removed.  This should always be done for the first stage of the filter which is usually a floss pad as this will quickly accumulate crud which impedes the flow of water into the filter.  That flow is necessary to ensure that the bacteria living in the media get the ammonia and oxygen they need to survive.

 

The filter media should never be replaced unless it is literally falling to pieces as you would be removing those bacteria.  The pre-filter floss can be changed every few months providing you keep it clean in between.

 

The tank should then be topped back up using dechlorinated tap water and the easiest way to do this is to add the dechlorinator to the bucket, then fill the bucket with tap water.  The dechlorinator takes almost immediate effect and the fresh water can be added to the tank.  Failing to use dechlorinator means that the chlorine/chloramine present in tap water to make it safe to drink will kill the very bacteria you need to keep the tank healthy for fish (which brings us back to the cycle).

 

Hope that clarifies what's required, but just ask if there's anything that you're not sure about.  It's better to learn from our mistakes (and everyone has made some!) than to make your own.

Mature, sensible signature required for responsible position. Good prospects for the right candidate. Apply within.
January 10, 2013
7:56 pm
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george
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January 9, 2013
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Thank you. That helps a lot. 

Do you know how to lower water hardness? I have a small issue with that.

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