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Home      Reply		Viewed: 297 -- Replies: 8
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Posted	Scum on the top of my tank
27-03-2006 18:22 by tommy	hi i have a mairne tank and the serface of the water seems to have scum on it like dust particals .. i no some people will say get a serface skimmer but i cant atm is there a cheaper way of getting rind of this
27-03-2006 19:17 by andrew shutt	i used to get that on mr tropical tank it when as soon as i made a current on the top off the water if that helps mate
27-03-2006 19:34 by Dagda	try a air stone to brack it up
27-03-2006 20:56 by michael hinson	air stone is not the answer too much air in the water affects marine fish and can cause bubbles in the gills,better to put a powerhead closer too the surface to keep the water surface moving
27-03-2006 21:54 by tony	i go with the power head idear at the surface
28-03-2006 00:34 by Lexter	usually lack of surface agitation, i hate scum
28-03-2006 09:49 by Alan	The cause is insufficient surface agitation with a protein build up at the surface. Do you have a protein skimmer on the tank? You may well need to add one if you don't already have one equally agitating the surface with a pump would be good but the build up may point to an overall lack of circulationin the tank ideally you want to be shifting about 20 times the tank volume of water every hour.
28-03-2006 15:12 by tony mcculloch	i had the same problem with my mbuna tank,I did what Alan has suggested and agiteted the water surface more, within a few days the surface is crystal clear.
28-03-2006 17:02 by -Rob C-	I had the same problem with my marine tank and a skimmer sorted it!

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