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Old 11-17-2005, 02:35 PM   #1
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Film on top of water.

Ya I was just wondering if there is something I could do to get rid of the film on top of the water. What is it? Could this be affecting my corals by not letting the light get thru?
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Old 11-17-2005, 02:54 PM   #2
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That film is protein buildup and yes it can block light from getting through, though not as much as you'd think. Regardless it is not good and can lead to problems down the road ... best thing is to aim a powerhead at the surface for more surface agitation. Break it up with current!
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Old 11-17-2005, 04:39 PM   #3
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Surface skimming also works very well. I installed a surface skimmer on my cannister filter and it removed the same film you speak of in less than two hours. Good luck.
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Old 11-17-2005, 04:43 PM   #4
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Surface skimming is the best way, but a powerhead breaking the surface like jermz said will do it too.
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Old 11-17-2005, 04:51 PM   #5
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Originally Posted by Hollywood
What is it?
Excessive DOC's.
Quote:
Could this be affecting my corals by not letting the light get thru?
Absolutely. It can also affect the air exchange and cause low PH due to lack of dissolved O2/excessive CO2. There are a couple ways to get rid of it as mentioned. Skimmers help as well as being careful not to over feed the tank. Also keep up on regular PWC's, and add more surface agitation to the tank by aiming a PH towards the top.
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Old 11-17-2005, 08:15 PM   #6
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I agree with surface aggitation
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Old 11-18-2005, 01:30 PM   #7
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You could also use the Fluval Surface Skimmer hooked up to your HOB or PH. It will clear it up quick along with more surface agitation. Your lfs should have it or can get it for you.

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Old 11-18-2005, 02:10 PM   #8
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i use the above surface skimmer in conjunction with my aquaC remora... it works pretty well, but it was a pain to hook up to my remora. none of the connections fit the suction of the maxijet pump, so i had to diy some pvc pipe to fit the surface skimmer outlet and the maxijet inlet. took a bit of time, but works nicely.

you will also have to adjust the surface skimmer a bit when it is new because the floating surface skimmer cup will bounce up and down depending on the suction.

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Old 11-18-2005, 04:28 PM   #9
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It can be a pain in the rear if you aren't diligent with keeping your water at the same level. It will then require a lot of adjustments.
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Old 11-18-2005, 05:34 PM   #10
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mp3z24.. the fluval surfase skimmer adjusts for water height by floating the surfase extracting tube up and down the black rod correct?
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