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11-07-2009, 05:57 AM
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#1
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Aquarium Advice Apprentice
Join Date: Oct 2009
Location: Singapore
Posts: 28
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Oily Film?
Hi,
My tank has been set up for a number of weeks now and has finally started to cycle properly (yayy!!).
However, I seem to have a weird film on top of the water, like an oil. It doesn't go away with water changes.
Any ideas? Harmful?
Plants are growing like mad and my little yamato shrimp are multiplying. So very cool.
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11-07-2009, 06:15 AM
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#2
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Aquarium Advice Apprentice
Join Date: Jun 2009
Posts: 30
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It's not harmful, don't worry. You are possibly overfeeding though, I heard this might be due to fats and proteins in the food, I'm not sure though. I see it too from time to time, I just don't let it bother me.
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11-07-2009, 06:19 AM
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#3
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Aquarium Advice FINatic
Join Date: Sep 2009
Location: Washington State
Posts: 648
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One of my betta tanks gets that too. And it also doesn't go away with a pwc. But I know I don't overfeed them lol, so I am not sure what causes it, but I don't worry about it anymore.
Glad to hear your fish, shrimp and plants are doing good!!!
__________________
“Why does Sea World have a seafood restaurant?? I'm halfway through my fish burger and I realize, Oh my God....I could be eating a slow learner.” 
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11-07-2009, 07:03 AM
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#4
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Aquarium Advice Apprentice
Join Date: Oct 2009
Location: Singapore
Posts: 28
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Cheers, thank you both. With my crisis early on I am over cautious now perhaps, LOL.
Such a peaceful little space in the home the fish tank is.
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11-07-2009, 09:40 AM
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#5
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Aquarium Advice Freak
Join Date: Jun 2009
Location: North Carolina
Posts: 299
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The name for this is biofilm  |
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11-07-2009, 10:00 AM
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#6
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Aquarium Advice Freak
Join Date: Apr 2009
Location: Longmont, Colorado
Posts: 459
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Do you use slate for decor? Slate can cause that film for a few days. I've also had it when I set up our brackish tank. The 3M color quartz that I used for substrate gave off a film that went away in about a week. (Yep, slate and the 3M were both washed/soaked)
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11-07-2009, 01:16 PM
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#7
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Aquarium Advice Addict
Join Date: Jul 2009
Location: Lexington, Ky
Posts: 2,037
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my tanks do it if i dont have good surface agitation... i solved the problem on one tank just by adding a bubble want about 1" from the top and it stirred the water up enough to take that film away
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11-07-2009, 06:34 PM
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#8
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Aquarium Advice FINatic
Join Date: Sep 2009
Location: Washington State
Posts: 648
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I can't add a bubble wand to my bettas tank....they would go bananas! I have the water level lowered to where the water hits the surface, but yesterday I had to put a piece of plastic canvas in front of it. My male betta, after me helping him regrow his tail for 2 weeks, decided it was a little too pretty and bit most of it off...Bad boy! So I think the agitation on the surface was too much for him, because he would stop chasing his tail of I turned it off....
I also found out that you can make a ton of cool stuff with plastic canvas!!! I am currently working on a "lattice" with the live plants in my 75G.
__________________
“Why does Sea World have a seafood restaurant?? I'm halfway through my fish burger and I realize, Oh my God....I could be eating a slow learner.”
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11-07-2009, 08:24 PM
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#9
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Aquarium Advice Addict
Join Date: Jul 2009
Location: Lexington, Ky
Posts: 2,037
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you can take a paper towel and just drag it across the surface to get rid of it if you cant clear it with added surface agitation
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11-07-2009, 09:07 PM
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#10
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Aquarium Advice FINatic
Join Date: Sep 2009
Location: Washington State
Posts: 648
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You know what? As I was just cleaning poo from my bettas tanks, I was wondering if you could use a paper towel! Jackpot! Thanks!
__________________
“Why does Sea World have a seafood restaurant?? I'm halfway through my fish burger and I realize, Oh my God....I could be eating a slow learner.”
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