Eheim surface extractor - The Planted Tank Forum

 
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post #1 of 12 (permalink) Old 08-04-2003, 06:09 PM Thread Starter
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Has anyone used an Eheim surface extractor on your cannistor filters? I have a white film constantly on the surface and is cutting down on the light getting through. Do they create much surface agitation? Do they make a sucking noise? Are they really bulky? Thanks
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post #2 of 12 (permalink) Old 08-05-2003, 04:46 AM
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try a couple of black molly's... they love to suck the film of the surface.

Scott
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post #3 of 12 (permalink) Old 08-05-2003, 01:01 PM
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I've got a ton of them and they do nothing for the scum.
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post #4 of 12 (permalink) Old 08-05-2003, 01:21 PM
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odd...

any idea where the scum is coing from?
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post #5 of 12 (permalink) Old 08-05-2003, 04:06 PM
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I've always heard it was an organic film caused by the decomposition of fish food and plant matter.

I had it for a while in my 250 gal. but now it all but disappeared. I thought about getting an Eheim surface extractor but read that they were a PITA and didn't work that well. I imagine that in a heavily planted tank you'd have a heck of a time keeping plants matter out of it.
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post #6 of 12 (permalink) Old 08-05-2003, 05:40 PM
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the scum is protein baby! I donno where it is coming from, but closed aquarium bound tohave that! In nature the water is always refreshed in the water cycle( evaporation~rain~condensation~etc~etc) thats why we will see them in our aquarium and not nature
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post #7 of 12 (permalink) Old 08-05-2003, 11:12 PM
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I have an Eheim surface skimmer and think that they do a great job.

I have put mine on a pro 2 2026, so I had to reduce the flow a little to stop rattling of the bottom valve.

They do not produce any surface agitation and they are not bulky.

Hope this helped.

Rumple

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post #8 of 12 (permalink) Old 08-05-2003, 11:15 PM
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Stupid question: is it just the black mollies that go for the surface scum? I have mollies, but no black.

--cich
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post #9 of 12 (permalink) Old 08-06-2003, 08:58 PM
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Rumples..
What is the tubing size on the surface extractor? 16/22 or 12/16? Did you have to downsize from 16/22 to 12/16 to fit the surface extractor?

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post #10 of 12 (permalink) Old 08-06-2003, 11:57 PM
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No, I did not have to down size. The tubing on the Eheim ( hard plastic) fits straight into the surface skimmer. All I did was cut a piece off the hard plastic so that the skimmer still met the surfce of the water.

Rumple

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post #11 of 12 (permalink) Old 08-07-2003, 12:47 AM
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What size is the "hard plastic" Rumple?

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post #12 of 12 (permalink) Old 08-07-2003, 01:34 AM
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I don't know for certain, but it is the largest size for hard plastic I think it is 16mm.

Sorry can help more than that.

Rumple

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90 gallon, CO2 dupla injection, Dupla substrate heating, Dupla Laterite with iron stone substrate, Aquastarlight future 3 x 150 metal Halides, Eheim 2026 pro2's and heavily planted with Discus
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