Velvet in a planted nano... is my tank shot?
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Old 03-14-2009, 02:59 AM   #1
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Velvet in a planted nano... is my tank shot?

Hi all! Long time lurker, first time poster... and I hate that my first post is about such a lousy topic.

Yesterday I picked up a female crowntail betta from my LFS. I put her in my 2.5 gal planted nano without thinking I'd need to quarantine her since she's the only tank resident besides a ramshorn snail. Well, today I noticed her fins were clamped and she was glancing off the driftwood. I pulled her from the nano and it looks like she may be in the early stages of velvet (though it's really hard to tell; all I can see is one spot near her head that might have the telltale gold dusting).

Needless to say, Ms. Betta is being returned to the LFS tomorrow. But here I am, stuck with a planted tank that may be contaminated with Oodinium.

Is my tank done for? That is, will I ever be able to have fish in it again? Is there any way to rid it of velvet that won't kill all the plants? Will letting it "lie fallow" for a few months sans fish get rid of any lurking velvet?

... or should I just resign myself to turning it into a shrimp tank? (eh, wouldn't be a huge loss, I've been wanting cherry reds and crystal reds for awhile)

I love the setup, and my Blyxa japonica is just beginning to take off... I'd hate to add copper and kill it all.
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Old 03-14-2009, 04:26 PM   #2
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I am not positive, but you may be able to kill it with temperature and a large water change if there are no fish in there? I believe some things like ich can be killed by raising the temp of the water to 88C. I am not sure about velvet, but perhaps someone knows if that is a possibility.
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Old 03-14-2009, 09:26 PM   #3
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First of all, make sure your girl really has velvet. A lot of betta owners think their fish have it when it's simply odd coloration. It's very normal for bettas to have an area of different coloration around their gills and especially on the tops of their head around the labyrinth organ. Velvet appears to be a fine yellowy dust in between the scales, sometimes a flashlight is needed to see it properly. If she has it, she will likely feel very itchy and exhibit flashing/scratching behaviors also, but then again, she could just be very afraid of you since you've just brought her home. It's unlikely that it would be in a very small spot, but rather a fine dusting. Can you get a picture of her?

Raising the temp won't kill the stuff. It just speeds up its life cycle so that copper sulfates can kill the stuff in the the free swimming stage. I think if you just let it lay fallow for awhile and keep changing the water, the velvet will have nothing to live on and fizzle out.
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betta, nano, oodinium, planted, velvet

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