johnny walker Posted September 7, 2010 Report Share Posted September 7, 2010 I have a large splish and splash tank that houses 2 whitebait and 2 bullys, at the top of the tank next to the tank wall there is a line of small bubbles. Does anybody know what this means? Cheers Quote Link to comment Share on other sites More sharing options...
livingart Posted September 7, 2010 Report Share Posted September 7, 2010 could be it needs a water change or a bit more disturbance on the surface uneaten food in tank, filter wool needs changing there are a few possibilities or it could just mean at the top of the tank next to the tank wall there is a line of small bubbles . Quote Link to comment Share on other sites More sharing options...
johnny walker Posted September 8, 2010 Author Report Share Posted September 8, 2010 Yeah probably I was just curious. Cheers Quote Link to comment Share on other sites More sharing options...
Stella Posted September 9, 2010 Report Share Posted September 9, 2010 You will probably notice a reduction in frequency after you do a water change, then it slowly builds again. I am guessing it is the same principle at work as is behind marine protein skimmers? Quote Link to comment Share on other sites More sharing options...
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