Aquarium Setup • oily layer on top of tank??

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oily layer on top of tank??

Postby desertrider15 » Wed Jun 09, 2010 12:39 am

Well a couple days ago i noticed that I have a oily dirt like layer on the top of my tank water. I have no Idea what it is(might be from food) Can anyone share some insight on this??

I have a Rena XP3 for my filter in my 36g. Got a power head tonight but its way to strong. Looked like a Whirlpool in my tank...But my fish had fun.lol Anyone know any ways to get rid of this?
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Postby KaiserSousay » Wed Jun 09, 2010 5:00 am

(might be from food)

Would be my guess.
You could try different foods, maybe less feedings as well.
Others have had sucess with this
http://www.fosterandsmithaquatics.com/p ... atid=12703
Could be a cheap cure for your problem.
Good luck.
-----John-----
Conlige suspectos semper habitos
All Malawi,All Mbuna, All Action, All the Time
"A government of the people, by the people and for the people"
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Postby 748johnd » Wed Jun 09, 2010 7:48 am

I noticed when I feed NLS I would get an oily dirty looking film on the water surface. Even with other foods I always seemed to get an oily film. I now use a surface skimmer and the water surface is always clear of any film. Many say to agitate the water surface and it will eliminate the film, but I found that it just moves it around and once you stop the agitation the film is there. You can use the surface skimmers with HOBs and canisters. Drs. Foster & Smith sell an HOB with a surface skimmer attached.
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Postby clgkag » Wed Jun 09, 2010 9:05 am

It is protein build up from food. Try feeding a little less and see if it doesn't start to go away.
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Postby holjofish82 » Wed Jun 09, 2010 11:21 am

or it could be the oil from your skin ??? :-?
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Postby naegling23 » Wed Jun 09, 2010 11:00 pm

Is it a soft water tank? This seems to be a problem that a few other soft water south american tanks have. I have the same issue. My solution is to turn my filter outlet up a bit to help break it up. I also remove the oil by placing paper towels over the water surface prior to water changes. This seems to keep it under control at least.
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Postby 748johnd » Thu Jun 10, 2010 9:52 am

I have hard water and dealt with the issue for years. I did the paper towel thing and tried skimming off the film into a container, but it was only a very temporary fix. Once I started using the surface skimmer I have never had the problem again.
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Postby OhOneWS6 » Thu Jun 10, 2010 6:59 pm

Another vote for a surface skimmer. They are cheap and solve the problem.
There is no such thing as a free fish tank. ;)
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