Oily Water? - Tropical Fish Keeping - Aquarium fish care and resources
LinkBack Thread Tools
post #1 of 6 Old 11-30-2007, 11:52 AM Thread Starter
New Member
Oily Water?

Not sure exactly what is wrong or if there is anything wrong but there is an oily substance that floats on the top of the tank. Not a whole lot but it its noticeable when feeding and cleaning. Does anyone know what it is and if its bad.
Have a 55 gal tank, topfin 60 filter, 5 convict cichlids, 1 salefin pleco, and these two little crabs bought at the lfs.
thanks for any help you can give.
jjflex is offline  
Sponsored Links
post #2 of 6 Old 11-30-2007, 12:52 PM
Amphitrite's Avatar
I get the same oily film at the top of my water if there's isn't enough water disturbance - especially after feeding. Can you change the angle/setting of your filter so that the flow is breaking the surface?

ʎɐqǝ uo pɹɐoqʎǝʞ ɐ ʎnq ı ǝɯıʇ ʇsɐן ǝɥʇ sı sıɥʇ
Amphitrite is offline  
post #3 of 6 Old 11-30-2007, 12:54 PM
fish_4_all's Avatar
It seems to a common thing to happen once in a while. The only thing I know of that causes it is a protein that floats on the surface.

The best way to remove a majority of it is to float plain, uncolored and unscented paper towels on the surface to absorb it. Simply place the paper on the surface and remove it immediately.
fish_4_all is offline  
post #4 of 6 Old 11-30-2007, 01:38 PM
Mirta's Avatar
I also have this oily film in my tanks. I first had it in one of my tank and then noticed it in the others too. I thought it was some bacteria and was going to post a question about it. Now thanks to this thread I realise that it may not be so bad and can be cleaned up easily. Thank you all! :D
Mirta is offline  
post #5 of 6 Old 11-30-2007, 01:48 PM
fish_4_all's Avatar
Some foods will cause it. I have gotten it especially when I do not peel zucchini even after washing it really well.

Water changes can often help to control the oil slicks. When I neglect my tank it can take a couple weeks of regular water changes to finally get rid of it.
fish_4_all is offline  
post #6 of 6 Old 11-30-2007, 03:30 PM Thread Starter
New Member
thanks for the input, i do regular 15% water changes once a week, and have three other tanks none of them have the problem, the paper towel idea worked and we'll see how it goes from there thanks again
jjflex is offline  

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Forum Replies Last Post
water question deoinized water vs distilled water jaysix79 Saltwater Fish 13 02-08-2010 01:42 AM
Questions on my water conditions. Advice on water changes and liquid fertilizer saulat Beginner Planted Aquarium 13 07-05-2009 05:50 PM
Oily film on water?? stevef10 Beginner Freshwater Aquarium 2 04-27-2009 09:14 AM
White Cloudy Water + Dead Fish after water change HELP!!! eviltuna Tropical Fish Diseases 8 03-05-2008 12:03 AM
oily-look on the surface of the tank le9569 Water Chemistry 7 09-25-2006 04:55 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome