Surface Scum.. - The Planted Tank Forum
 
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post #1 of 14 (permalink) Old 02-26-2012, 08:47 AM Thread Starter
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Surface Scum..

This for me is a pain! How do you guys deal with surface scum? I've got a spray bar that gives lots of surface movement but I still get it Any good ways of combating it?

I don't really want a surface skimmer in the tank as I'm trying to keep equipment out of the display.
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post #2 of 14 (permalink) Old 02-26-2012, 09:56 AM
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Get a cup and scoop out some of the water from the surface (or even use a net to get the scum off)... then insert new water. That usually lasts me 3 days and I don't have that much water surface movement. But if you moved the spray bar above the water so it literally skims off the surface, there's no way it could build up... you could do that also and let it sit like that for a while to break up the surface then put the spray bar back lower.
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post #3 of 14 (permalink) Old 02-26-2012, 10:04 AM
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...eventually youll move to the surface skimmer


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post #4 of 14 (permalink) Old 02-26-2012, 10:39 AM
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6 tanks 10+ years -> still no surface skimmer
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post #5 of 14 (permalink) Old 02-26-2012, 10:46 AM Thread Starter
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How do you get round it OVT? The surface of water is being blasted, see..

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post #6 of 14 (permalink) Old 02-26-2012, 06:34 PM
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I had the same problem. Check out this thread: https://www.plantedtank.net/forums/di...e-skimmer.html

I built one last night and it worked great! Much easier than manually extracting it by holding a cup just under the surface to skim it off....
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post #7 of 14 (permalink) Old 02-26-2012, 11:02 PM Thread Starter
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^^^ what a good idea. Nice one.
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post #8 of 14 (permalink) Old 02-27-2012, 12:31 AM
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Quote:
Originally Posted by spookyspike View Post
How do you get round it OVT? The surface of water is being blasted, see..
Maybe I am one of the lucky ones as I do not get the surface scum. Maybe it's a difference in water? Do we know where that scum comes from?
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post #9 of 14 (permalink) Old 02-27-2012, 04:21 AM
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is the scum your talking about the oily looking proteins on the surface?? I get it too.

Have read about an airstone working wonders but havent tried it yet.
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post #10 of 14 (permalink) Old 02-27-2012, 09:10 AM Thread Starter
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Quote:
is the scum your talking about the oily looking proteins on the surface??
Yup, thats the grotty stuff!
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post #11 of 14 (permalink) Old 02-27-2012, 12:50 PM
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My 2.5 gallon nano gets a little, but my 125 gallon has no issue... Granted my overflow skims the surface but before that was never an issue

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post #12 of 14 (permalink) Old 02-27-2012, 02:00 PM
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Putting an airstone in really helps me. I turn the air on at night every 2-3 days. If I leave it off for a few days the surface scum builds up. I turn the air on overnight and voila, it's gone.
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post #13 of 14 (permalink) Old 02-27-2012, 02:14 PM
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It comes from uneaten food and poop that hasnt been completely handled by the 100+ types of bacteria in the tank.. airstone works and other methods. I advocated them hard...

Now 10x turnover rate, well aerated water makes for strong bio filtration and surface film is a thing of the past.. its more prevalent in smaller tanks as they are hard to keep balanced. Bigger tanks tend to have stronger filtration systems, and more space for bacterial colonies

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post #14 of 14 (permalink) Old 02-27-2012, 03:10 PM
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I think I'm going to have to agree that good aeration, surface movement, turnover, etc., keep surface film away. At least that's what I attribute it to from my own experience. Whether it's correct or not is another matter.
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