Stream Of Bubbles Coming From Substrate?

kristeng121593

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HI everyone! I’ve had my goldfish tank set up for about a year now and just recently noticed that there is a stream of bubbles coming up from under the substrate. I have a bubble bar in the back of the tank but these bubbles are coming from a separate spot. The tank also smells vaguely like sulfur.... I am curious whether this is an air pocket, and if so, what should be done about it. It’s tempting to stir up the substrate where the bubbles are coming from, but I wasn’t sure whether that could be a bad idea.
 

Jay Chen

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kristeng121593 said:
HI everyone! I’ve had my goldfish tank set up for about a year now and just recently noticed that there is a stream of bubbles coming up from under the substrate. I have a bubble bar in the back of the tank but these bubbles are coming from a separate spot. The tank also smells vaguely like sulfur.... I am curious whether this is an air pocket, and if so, what should be done about it. It’s tempting to stir up the substrate where the bubbles are coming from, but I wasn’t sure whether that could be a bad idea.
It shouldn't be that bad since if you left it alone it'll get worse. You probably missed that spot when you gravel vac.
 

Mom2some

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How deep is your gravel? Deep gravel can build up toxic pockets of anerobic bacteria which are lethal if released. That sounds unlikely in this case, but just to be sure I would remove the fish before exploring that section of gravel.
 

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