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badflash
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Joined: Sun Dec 13, 2009 8:44 pm Posts: 287 Location: Wappingers Falls, NY 
 Zip Code: 12590
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 Deformed Fry
In a recent batch of healthy fry I got 4 or 5 deformed ones. Their tails are not properly formed and they can't swim. They have lasted for 2 weeks as bottom feeders. Is this common?
The female that produced these had a huge number of babies and these were way in the back. Is this coused by too many babies?
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| Fri Mar 05, 2010 4:22 am |
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jerrytheplater
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Joined: Sun Mar 25, 2007 5:07 am Posts: 1191 Location: Bloomingdale NJ 07403 / Paterson, NJ 07501
Zip Code: 07403 / 07501
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Re: Deformed Fry
I assume it is one of your mouthbrooding Tilapia? I would only be guessing as to the reason. Are you thinking mechanical damage while in the egg stage in the mouth? I guess it sounds plausible.
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| Fri Mar 05, 2010 4:32 am |
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Afreakin
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Joined: Mon Mar 20, 2006 3:32 am Posts: 2668 Location: Port Washington, NY 
Zip Code: 11050
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Re: Deformed Fry
I have heard that a too crowded mouth can cause such a thing but to be honest it was from an unreliable source. I have also heard that water quality can also play a role.
How long did the female hold for? In the wild these fish would never survive, natural selection ya know?
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| Fri Mar 05, 2010 4:34 am |
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Spooky_Fish
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Joined: Thu Sep 07, 2006 8:38 pm Posts: 814 Location: Bloomingburg NY
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Re: Deformed Fry
I occasionally get deformed fry, malformed or missing caudal fins, twisted spines, etc.
Usually, but not always, they come from inexperienced females.
I would not be concerned.
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| Sat Mar 06, 2010 12:24 am |
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badflash
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Joined: Sun Dec 13, 2009 8:44 pm Posts: 287 Location: Wappingers Falls, NY
Zip Code: 12590
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Re: Deformed Fry
They went full term. I didn't start to strip until I saw some free swimming fry. These had no egg sack. Water quality is great and I didn't see this with the other 3 females in the same brood tank. This one was really stuffed. The females came from Dykemyster and claimed they were proven females all. Afreakin wrote: I have heard that a too crowded mouth can cause such a thing but to be honest it was from an unreliable source. I have also heard that water quality can also play a role.
How long did the female hold for? In the wild these fish would never survive, natural selection ya know?
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| Sat Mar 06, 2010 1:12 am |
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badflash
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Joined: Sun Dec 13, 2009 8:44 pm Posts: 287 Location: Wappingers Falls, NY
Zip Code: 12590
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Re: Deformed Fry
No, there were firefish/dragon's blood's. Never seen this in tilapia. Could be more room. Tilapia eggs are just about the same size, but the females are 10", not 4". jerrytheplater wrote: I assume it is one of your mouthbrooding Tilapia? I would only be guessing as to the reason. Are you thinking mechanical damage while in the egg stage in the mouth? I guess it sounds plausible.
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| Sat Mar 06, 2010 1:14 am |
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Afreakin
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Joined: Mon Mar 20, 2006 3:32 am Posts: 2668 Location: Port Washington, NY
Zip Code: 11050
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Re: Deformed Fry
Spooky_Fish wrote: I occasionally get deformed fry, malformed or missing caudal fins, twisted spines, etc.
Usually, but not always, they come from inexperienced females.
I would not be concerned. Look at the owner  Love ya man How the hell are you Mike?
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afreakin@nycichlidforum.com
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| Sat Mar 06, 2010 3:38 am |
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Spooky_Fish
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Joined: Thu Sep 07, 2006 8:38 pm Posts: 814 Location: Bloomingburg NY
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Re: Deformed Fry
Afreakin wrote: Look at the owner Love ya man How the hell are you Mike? 
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| Fri Mar 12, 2010 5:14 pm |
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