Oil on surface - The Planted Tank Forum

 
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post #1 of 8 (permalink) Old 02-17-2013, 12:22 PM Thread Starter
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Oil on surface

Hello!

My dirt tank have now been up running for a couple of weeks. The last days i have a oil substance forming on the water surfase. If i dont remove the oil it will actually beacome a oil film that stop the little amount of surface circulation i have on this tank.

Any suggestions what could cause this?

Jnad
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post #2 of 8 (permalink) Old 02-17-2013, 01:39 PM
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The oily film is leaching from your new dirt substrate and/or cap. Your low surface circulation allows it to accumulate. A dry paper towel laid on the surface will absorb most of it. Also, if possible, increase your surface circulation.
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post #3 of 8 (permalink) Old 02-17-2013, 01:43 PM
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Two week old thank, it could be protein. Does it form little bubbles along the edge and in the corners? This happens a lot in cycling tanks.
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post #4 of 8 (permalink) Old 02-17-2013, 01:44 PM
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Re: Oil on surface

It's proteins in the water column. Increase surface agitation (I recommend an air stone). There are a few fish that will eat it as well. Platties, mollies, swordtails, and some gouramis All eat this surface protein.

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post #5 of 8 (permalink) Old 02-17-2013, 02:51 PM
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purigen solves my protein film issues. frequent water changes are also a huge help for obvious reasons
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post #6 of 8 (permalink) Old 02-17-2013, 03:00 PM
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There is actually a large thread dedicated to this in Fertilizers and Water parameters called biofilm problems.
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post #7 of 8 (permalink) Old 02-25-2013, 05:36 PM
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I recently bought a surface skimmer made by TOM. It can be hooked up to the intake of various filters. I put it on a canister filter and it was gone in about 10 minutes. I just left it on and surface is always clear. Has not affected CO2 levels. But since you are using in a low tech tank you may not care as much anyway. It was about 10 dollars.
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post #8 of 8 (permalink) Old 02-25-2013, 09:13 PM Thread Starter
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I actually have a Hagen/Fluval surface skimmer laying around, i might just use it on my bigger tank.
This one:
http://ca-en.hagen.com/File/07ef6f39...4-4cefb26225f0

I just wondered what the oily substans on the water surface was.
Tanks for answering.

Jnad

Quote:
Originally Posted by nelson23 View Post
I recently bought a surface skimmer made by TOM. It can be hooked up to the intake of various filters. I put it on a canister filter and it was gone in about 10 minutes. I just left it on and surface is always clear. Has not affected CO2 levels. But since you are using in a low tech tank you may not care as much anyway. It was about 10 dollars.
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