too much bubble foams up on water surface

  • We are currently upgrading MFK. thanks! -neo
No substrate at all...

I kinda think its my feeding that caused this bubble thingy. Is this harmful?
 
LiuHsi;1016096; said:
ahh... and they make this for ac110 as well?

I'm not sure if the ac110 is a hang-on-back filter but this is how the surface skimmer works. It's a tube with one serrated end that is by the surface of the water. The other end has a tube that can connect to the intake tube of your canister or hang-on-back.
 
mercury904;1016216; said:
waterchange ...period...

"i feed a lot 2 times a day, mainly shrimps.. power feeding"


Even if you do water changes everyday, the protein slick will still be there unless you remove it also. Usually when a water change is done, water is removed from halfway or close to the bottom of the tank. Because he admits that he "power feeds mainly shrimp 2 times a day", the protein oil? (lighter than water), will always float to the surface. With the surface skimmer, you are consistently cleaning the surface automatically. With regular water changes and the skimmer, you should have no problem feeding whatever (within reason) to your fish while keeping the water clear. The Doctor.
 
duanes;1014673; said:
I use protein skimmers on my fresh water tanks, and they work well when too much DOC and protein is in the water. I built mine from an article in AFM by Stephen Meyer. Sounds like you need one. Here's a pic of it working.
image001-9.jpg

Here's what it removes
image001-10.jpg

here's a test I did in the lab to show removal in dry weight
05-15-07_0831.jpg

The white pads are normal tank water the dark is 2 weeks of skimmer waste buildup dessicated, and dried in an oven. Weight is 7 Xs weight of straight tank water dried.
Here's a sample of tank water compared to 2 weeks of skimmer waste.
05-15-07_0744.jpg

cool post. :thumbsup:
 
Thanks davo
A surface skimmer works great as long as your dilligent cleaning out the media it ends up in, ie canister, but if its left in the canister a while, its really not out of the tank water. If you clean your canister every couple days, you should be in the clear.
The reason protein skimmers work, is protein is chemically and physically drawn to an air/water interface, like the surface water of the tank. In a protein skimmer, protein and other disolved organic compounds collect on the interface of the bubbles the fractionator produces and are immediately removed to waste. In commercial models this is usually a collection cup, or in my case directly to my basement drain, and totally removed from the tank water.
Sorry if I seem too anal.
 
I looked no shiny rainbow...

fishdance;1014691; said:
If the protein is excessive, you might be able to see it as a shiny rainbow slick on the still water surface. Drop some newspaper or paper toweling onto it to blot it up and then whisk it off sideways into a bucket.

Protein skimmer is the best bet but you might be able to get away with a surface intake on your filtration since a lot of freshwater protein is lighter than water and it will have a higher concentration at the surface. Thats why the bubbles are forming and why your water changes are less effective. The protein is mostly at the water surface. You will still have to clean filters frequently though.
 
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