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Old 08-04-2011, 12:35 AM   #1 
SamanthaC02
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Genetic trait or is something wrong?

I got a crowntail betta 3 or 4 weeks ago, he has grown a lot since I took him home but two of the rays on his dorsal fin seem to have grown in a hook shape, not curls, not torn or rotted or wilted looking. They look healthy and red but seem to have grown the same as the others and then suddenly decided to grow down towards his body...

I'm sure it's not fin rot but is it likely bad genetics? or could it be from high nitrate, being in too small a bowl or something else? (he was in a 1.75 gallon when this first happened and is now in a 3 gallon tank)

Thanks in advance!
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Old 08-04-2011, 12:54 AM   #2 
Kytkattin
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Someone with a lot more experience will have a better answer than me, but i am pretty sure that crowntails have problems if their water has too high of PH. Though like I said, that might be wrong. Wait until someone who actually owns/breeds crowntails comes along and can explain it better.

Though I am also pretty sure that your boy is in no immediate danger, so you can rest easy knowing that. :)
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Old 08-04-2011, 12:56 AM   #3 
Sakura8
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Hi Samantha and welcome to the forum. Can you follow the link and fill out the sticky? The info you provide will help us determine what the problem might be.

http://www.bettafish.com/showthread.php?t=49233

Offhand, I do agree with Kytkattin, I have also heard that high pH curls the rays of a crowntail but there are other factors too so I'd like to be able to rule those out first with the info you provide.
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Old 08-04-2011, 12:57 AM   #4 
SamanthaC02
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Thanks for your responce, the high ph is possible. my tap has very low ph and I do add ph up so I may have added too much on one of my water changes...
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Old 08-04-2011, 01:04 AM   #5 
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How low is low pH from your tap? Unless you are trying to breed a fish and need a specific pH, it's generally best to just leave your pH alone. Even if it isn't the "ideal" pH for the fish, a slightly higher or slightly lower but always stable pH is better than constant fluctuations. It's amazing how well fish adapt to conditions that aren't ideal. Not only adapt but thrive, too.
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Old 08-04-2011, 01:04 AM   #6 
SamanthaC02
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oh, thank you here is the sticky

Housing
What size is your tank? 1.75 gallon when it happend now 3 gallon
What temperature is your tank? 72-79
Does your tank have a filter? no
Does your tank have an air stone or other type of aeration? no
Is your tank heated? yes
What tank mates does your betta fish live with? none

Food
What type of food do you feed your betta fish? top fin color enhancing betta bits
How often do you feed your betta fish? twice a day

Maintenance

How often do you perform a water change? 1-2 a week
What percentage of the water do you change when you perform a water change? 100%
What type of additives do you add to the water when you perform a water change? betta conditioner, ph up, freshwater salt

Water Parameters:
Have you tested your water? If so, what are the following parameters?

Ammonia: 0
Nitrite: 0
Nitrate: 0
pH: low
Hardness: low
Alkalinity:

Symptoms and Treatment
How has your betta fish's appearance changed? two hook shaped rays on dorsal fin
How has your betta fish's behavior changed? not at all
When did you start noticing the symptoms? about a week ago
Have you started treating your fish? If so, how? no
Does your fish have any history of being ill? no
How old is your fish (approximately)? na
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Old 08-04-2011, 01:05 AM   #7 
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the ph from my tap is below 5 and only gets to about 6 when I add ph up
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Old 08-04-2011, 01:09 AM   #8 
Sakura8
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Your husbandry looks good, plenty of water changes and all. Have you been adding the pH up right from the beginning or did you start after the fins started curling?
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Old 08-04-2011, 01:17 AM   #9 
Pataflafla
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If it's growing like a hook and not just droopy I think that just something the fins do. I don't know if it means bad breeding or anything. Ratchet, my crowntail, has a few rays that look hooked on his anal fin. I don't think it's anything to really worry about.
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Old 08-04-2011, 01:20 AM   #10 
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I only have one crowntail and he's a handicap betta so I don't see much of his fins - he scoots around on his tail in a sitting position. So I can't tell if he has curls or hooks in his fins or not.
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