Brow Bubles Floating On Tank Side ?, brow bubles floating on tank side ??? Options

[low]

Hi,

Does anyone know what are those browny thing bubles that float on the tank side ?
How to get rid of it ? and prevent it ?

And why my tank water is alway blur blur cloudy cloudy !!!!

Below are my tank setup.

13 small goldfish
filter : eheim 2213 and 1 xxx brand interner filter
media :eheim sub(25%), sub pro(45%) and 30% CR.
1 x air bubles
tank size : 60 x 45 x 45

almost 3 week already.

any advice is appreciated.

Thanks

[low]

now the brown bubles is gone ! but still alot of bubbles along the side of tank and water start to cloudy after 2 to 3 days

I am using a 2213, can expert advice what media other than eheim sub pro( currently using). ? or how the layout of media should be from bottom of the 2213 ?

really want ot give up liao..........

my current layout is as follow

from bottom CR, then the blue form come togeter with 2213 then eheim sub and sub pro, 10 over pieces of biohome, 10 small coral chip then lastly or the top is white cotton wools.

This post has been edited by low: Mon, 27 Jun 2005 4:25 pm