Malformed fry

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Malformed fry

Postby Joe Rodriguez » Sun May 02, 2010 2:33 pm

Hello, I am presenting in this forum, i read a lot here, but this is my first message.

I have a problem whith my fry, when they grow up, and have two month to live, they twisted the spine begins almost where the tail fin. Clearly twisted.
They also have pectoral fins, twisted.
This happened to me with two different partners for the firs time was a year ago and this time well spent.
What do you think is causing this problem?

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Joe Rodriguez
 
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Postby Tony Vaughan » Mon May 03, 2010 12:28 pm

Hi Joe,

Would you be able to post some pics to show us the problems :question: :question: :question:

Sometimes water quality issues can cause deformed fry, it can also be caused by inbreeding.

Best Regards...............Tony
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Postby Joe Rodriguez » Mon May 03, 2010 8:38 pm

Hi,

I tried to take pictures, but no well apreciatted.

Discard inbreeding, because they are different varietes and breeders.

What water problems are causing defformation??

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Joe Rodriguez
 
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Postby Tony Vaughan » Tue May 04, 2010 6:10 pm

K - then can you tell us what your water parameters are :question: :question: :question:

If the water you are using is too soft then it may not contain the minerals and elements for the baby discus skeleton to form correctly and may create short gill covers, shortened dorsal or anal fins etc etc.

I have seen in the past fry that had deformed spines because the airstone that was in the tank when the eggs were laid was too close to the fry / wrigglers and this caused the fry to have deformed spines.

Hope this Helps.

Best Regards.................Tony
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Postby Joe Rodriguez » Tue May 04, 2010 10:33 pm

Hello, my ph is 6.8 and kh 3. Gh is 0 (seems unusual) but the test seem right.

The test are of drops and aquarium pharmaceuticals.

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Postby Tony Vaughan » Wed May 05, 2010 9:27 pm

Hi Joe,

Yes the readings seem a little soft.........can you give us a description of the contents of the tank and how you treat your water prior to a water change :question: :question:

Are you sure you have no general hardness at all :question: :question:

Best Regards................Tony
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Postby Joe Rodriguez » Thu May 06, 2010 10:14 pm

Where are the fry aquarium is naked.

The tank where the water to change, is a cube whith 85% RO and 15% tap water.

Possibly gh test is expired and not done properly.
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Postby Tony Vaughan » Sat May 08, 2010 8:04 am

Hi Joe :welcome:

You cold try adding some minerals to the water once the fry become wrigglers to increase the hardness a little.

If you only have kh buffers in the water then there is a risk that these might bubble off and you could be left with water that is too soft to supply the nutrients for skeletal growth in the fry.

You could also try by increasing the amount of tap water you use and decrease the amount of RO to see if that helps.

HTH.

Best Regards...........Tony
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