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20 Gallon Long Fish Addition

This is a discussion on 20 Gallon Long Fish Addition within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; --> Hmm around 7 is neutral so not too bad either way. Should do a test once a month or so. My water comes out ...

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20 Gallon Long Fish Addition
Old 02-23-2013, 12:47 PM   #11
 
Hmm around 7 is neutral so not too bad either way. Should do a test once a month or so. My water comes out of tap at 7.8, after 6 months my tanks generally sit at 7.2. If your water changes much at all it should impact your future choices regarding fish.

Platy females can store sperm for up to 6 months, so a single encounter with a male can result in up to 7 different spawnings.
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Old 02-23-2013, 12:52 PM   #12
 
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I haven't had any signs of them reproducing. Are they like saltwater clowns and change sex if need be?
If you only have a couple, maybe you don't have M and F! They usually reproduce like rabbits (staying alive is another thing all together).
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Old 02-23-2013, 07:32 PM   #13
 
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Back to those water parameters, is the GH of 20 in ppm or dGH? I would assume 20 ppm, which is very soft, a tad above 1 dGH. You are not going to keep livebearers healthy very long. This is ideal for the soft water fish like neons and corys. If the 20 is dGH, then the neons willnot last.

A 20g long is not much space, to the fish. Depending upon what we learn about the above GH, a group of 5-6 corys total is perfect. And the neons can be increased to around 12.

Byron.
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Old 02-24-2013, 10:59 AM   #14
 
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Back to those water parameters, is the GH of 20 in ppm or dGH? I would assume 20 ppm, which is very soft, a tad above 1 dGH. You are not going to keep livebearers healthy very long. This is ideal for the soft water fish like neons and corys. If the 20 is dGH, then the neons willnot last.

A 20g long is not much space, to the fish. Depending upon what we learn about the above GH, a group of 5-6 corys total is perfect. And the neons can be increased to around 12.

Byron.
I agree with Byron on this. The soft water will not support the livebearers well. And the neon increase would be great.
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Old 02-24-2013, 12:09 PM   #15
 
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Originally Posted by wake49 View Post
I haven't had any signs of them reproducing. Are they like saltwater clowns and change sex if need be?

Unlike clowns that are able to change sex, platys have a definite female and male. If you look at the anal fin on the female it will be fanned out. On the male it will have a gonopodium extending backwards in the place where the female anal fin is.

Here is an example of a very pregnant female



Here is a nice example of a male



Just a note these pictures are not mine but are ones that I found on photobucket to show the difference between female and male.

Last edited by BarbH; 02-24-2013 at 12:16 PM..
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Old 02-25-2013, 08:06 AM   #16
 
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Originally Posted by Byron View Post
Back to those water parameters, is the GH of 20 in ppm or dGH? I would assume 20 ppm, which is very soft, a tad above 1 dGH. You are not going to keep livebearers healthy very long. This is ideal for the soft water fish like neons and corys. If the 20 is dGH, then the neons willnot last.

A 20g long is not much space, to the fish. Depending upon what we learn about the above GH, a group of 5-6 corys total is perfect. And the neons can be increased to around 12.

Byron.
Thanks B.

Last night I used a 5-in-1 test to get:

Ph 7.5
Kh 80 ppm
Gh 150 ppm
Nitrite 0 ppm
Nitrate 20 ppm


I am slightly colorblind (not so much that I can't differentiate colors themselves, but I can't see different shades of the same color, or similiar shades of analogous colors)
so I had my wife check these and she wasn't as into it as me...

This looks to be ok for the Cories and Livebearers, but the Tetras are probably suffering from this. What should be my next step?
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Old 02-25-2013, 08:07 AM   #17
 
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Originally Posted by BarbH View Post

Just a note these pictures are not mine but are ones that I found on photobucket to show the difference between female and male.
Thanks BarbH,

I will look tonight.
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Old 02-25-2013, 12:51 PM   #18
 
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Originally Posted by wake49 View Post
Thanks B.

Last night I used a 5-in-1 test to get:

Ph 7.5
Kh 80 ppm
Gh 150 ppm
Nitrite 0 ppm
Nitrate 20 ppm


I am slightly colorblind (not so much that I can't differentiate colors themselves, but I can't see different shades of the same color, or similiar shades of analogous colors)
so I had my wife check these and she wasn't as into it as me...

This looks to be ok for the Cories and Livebearers, but the Tetras are probably suffering from this. What should be my next step?
GH at 150ppm is about 8 dGH, and that is not too high for most soft water fish. Neons are rather delicate though. There are other tetra that woould be better [check the profiles].

Nitrate at 20 ppm I would aim to get lower. Have you tested just the tap water for nitrate? It helps to know if the source is strictly the tank's biology, or if some or all of this is coming in with the water changes.

Byron.
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Old 02-25-2013, 02:45 PM   #19
 
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GH at 150ppm is about 8 dGH, and that is not too high for most soft water fish. Neons are rather delicate though. There are other tetra that woould be better [check the profiles].

Nitrate at 20 ppm I would aim to get lower. Have you tested just the tap water for nitrate? It helps to know if the source is strictly the tank's biology, or if some or all of this is coming in with the water changes.

Byron.
I looked at the Fish Profiles and think I would like the Bloodfin Tetra. They seem like a hardier Tetra that can withstand my water params. What should I do about the Neons? Rehoming is not an option at my house. I have a 16 gallon bow that I can fill with Tetras, but my wife would not be happy about another tank in the house, lol...
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Old 02-25-2013, 04:18 PM   #20
 
Bloodfins can cause problems if you want to add other species into the tank. I had a school that lived with the same fish for almost 6 months. Woke up one day and almost everything else had been beaten up.

So either make sure tank mates are at least a fair bit bigger or just have one big school of them.
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