So even with powerheads blasting the surface I keep geting what looks like a oil slick on the top of the tank. So what can I use to skim it off that is not a surface skimmer attatchment. And could it be the PE mysis shrimp that is leading to this?
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An aquarium is just a submarine for fish.
Last edited by fishdip22; 01/03/2018 at 01:39 PM.
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