Concerning Kuhli Loach Mark

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TheDarkAbyss

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Greetings Fishlore!

So, about 24 hours ago at the time of this thread's creation, I bought 3 new kuhli loaches for my band of 5 in my tank just because they were on sale, and I noticed that one of them is holding eggs. But with the eggs, she has a very concerning chest mark...
bW5rwQc.jpg

zxYaE7l.jpg

She's the only kuhli out of the 8 I now have that has this mark. Is this a parasite? The kuhli is doing fine and feeding as if nothing's wrong, showing no signs of illness. She was like this when I introduced her, and I know it's a she because she is holding eggs:
isBESGx.jpg

If the water parameters matter on a creature that was already like this from the store:
pH: 7.6
Temp: 75.6 degrees Fahrenheit
Ammonia: 0 ppm
Nitrites: 0 ppm
Nitrates: <5 ppm

I would like an answer to this as soon as possible, I will take her out if it's a bacterial infection

qljSnfg.jpg

She acts like your normal, healthy kuhli, I'd like to make that clear, she's already accepting bloodworms and algae wafers.
 

Ravynn

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That looks pretty normal to me. I've seen countless Kuhlis with that redness and a few of mine have it too. I don't know if it's their organs or not. My P. Cuneovirgata all have that.

Edit: mine are on sand as well, i've had them almost 5 months
 

CraniumRex

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Cool pictures!

Sorry, don't know what the dark mark is but I have 12 kuhlis and none of them has any red marks on them like that that I have ever seen. But mine are on sand.
 
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TheDarkAbyss

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That is coarse sand, if anyone thinks that's the reason. Although the 7 others don't have any marks like that and 4 of them have been here for over a year.
 

CraniumRex

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Interesting. I should have noted that the photos are larger than life size - duh!

Just to edit my previous response - I had a really, really good look at my kuhlis, or some of them, and a few did have that dark mark. Not all, but a few. I wonder if it's part of their digestive system? Not sure and I feed wafers and sinking pellets that are not dyed or have any colour so don't know if that's it.

Wouldn't baby kuhlis be fun?
 
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