Super small white worms? - Betta Fish and Betta Fish Care
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post #1 of 4 (permalink) Old 06-14-2013, 11:39 PM Thread Starter
ShadyLex's Avatar
Join Date: May 2013
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Super small white worms?

Today I noticed some white worms in my planted tank. They're incredibly thin and small and they wiggling around when in the open water. They're roundish, so they're roundworms and are segmented from what I could see.

Are they harmful to bettas? The tank is currently empty of fish and I've been changing the water a whole lot this past week. I'm also going to be gone for a week on vacation and are they going to overrun the tank while I'm away?

I have a 10 gal tank, sand bottom, 2 anubis, 1 java fern, and some duckweed.
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post #2 of 4 (permalink) Old 06-15-2013, 11:35 AM
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Location: Sydney, Australia
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If they are really tiny, like a few millimeters long, then I had this in my tank not too long ago, if i am not mistaken, these are just the microworms that are naturally occurring in planted tank's substrates. I had otos in my tank when this happened but they were fine, did some research on them, apparently they only appear due to a lack of oxygen in the tank and go to the surface. They are not harmful, should go away after a while, mine disappeared after a few days.
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post #3 of 4 (permalink) Old 06-16-2013, 01:28 AM Thread Starter
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Thank you. I was thinking about doing a 100% water change when I return home from my vacation. It's been about a month since the tank has been set up and I would like to give it a nice wash before I get my betta. When doing a 100% water change what do I need to keep wet and what should I replace?
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post #4 of 4 (permalink) Old 06-16-2013, 02:12 AM
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Without knowing what your tank is like, its hard to say, but assuming it has a substrate system with live plants etc in there, you'd want to siphon out all the water to about the lowest point in your tank without disturbing the substrate. Then refill with aged water, just dont leave the filter media and plants without water for too long, as long as they dont dry up. Just note that doing a 100% water change in a cycled planted tank does affect the tank quite a bit, it can destabilized the water parameters in your tank, so it would be safer to do that, then let it stabilize over a few days as you check the parameters before putting your betta in.
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