Bubbles forming on surface of water

W

Wat2Go

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Feb 23, 2007
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I set up a new 29 gallon tank 4 days ago. It has a Aqua 30-40 filter. I added very well rinsed gravel, some decorations and a couple of plants. I also added TLC (live bacteria) in the recommended dose (1/2 ounce per 10 gallon). I added 5 zebra danios the next day (they came out of my ten gallon tank. I would have liked to give the 29g tank a bit more "sitting time" but the danios needed to be taken out of the 10g tank).

Today I notices there are bubbles forming on top of the surface, rather a lot. I used some paper towel to take most of it off, but that didn't seem to do much good...

Water is 78 F, amnio 0, nitrite 0, nitrate 0, ph 7.0. I don't think the tank has even begun a proper cycle, so I do not plan to add any more fish for at least another 3 weeks, and the danios are very happy campers.

What are these bubbles, and how do I get rid of them?

L.
 
i had the same thing when i first set my tank up, they were on top, and were even on the glass, went away 3-4 days later. also i was using a air bubbler that was putting out a lot of bubbles in my 55 gallon, and that caused a lot of bubbles too, i switched to an air whisper 20 and problem was solved
 
i added salt to my tank recently (1tsp per g) to treat itch and have been getting the same problem. thought this might help.
 
nickmcmechan said:
My me a lot of nonsense, but I was once told that the bubbles were due to all the stuff the water company adds to water to treat it, and it was a good sign when they were dissappearing as they were taking bad chemicals away!?!?!?!?....might be nonsense?
Click to expand...

just the tank is over saturated with o2.
 
Question you said, " On top of the surface." Does that mean there are bubbles on the water surface? So, basically there is a film on top of the water that is allowing the bubbles to stay there without popping? Is that what you mean? If so you should try and run an air pump to circulate the water and break the surface, so it doesn't get stagnant.

Also, I've never heard of TLC, so I would be weary about that if it is one of those products that claim to add beneficial bacteria to your tank to make it cycle faster. I believe, only Biospira is the real one that does what it claims.
 
Yes, it sort of is a film of bubbles (does that make sense?) It covers about 1/3 of the surface (standard 29g tank) and is around where the filter circulates the water back into the tank. The bubbles are clear but dense. It doesn't smell funny. I have tried to scoop some out with a paper towel, but not very succesful.

TLC claims to cycle the tank faster. It also claims to destroy unhealthy amonia and nitrites. It didn't cause any bubbles in the ten gallon tank. It came with the ten gallon starter kit. I have thrown it away.

L.
 
Hmm. Anybody have any ideas because we are 4 days later now and even though it hasn't gotten any worse, it is also not getting any better?

Again, it isn't dirt, it is just a dense layer of bubbles forming where the filterwater streams in.
 
Could be a bacterial bloom. Just break it up or blot excess w/ paper towel - anything you can do to increase circulation at the top will help too.

Although unattractive, it shouldn't cause any problems as long as it doesn't cover the entire surface (if allowed to do that, gas exchange would be impeded).
 
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