Re: beginners and sponge filters

["Christopher Graseck" <cgraseck at cloud9_net>]

>>basically are a circle of
>>sponge weighted down and with a 1/2" tube rising from the middle. The
>>fact that they are sitting on the tank bottom means that they are less
>>exposed to the water on all sides, but ride low in the water column.

The one problem with any foam filter that sits on the bottom, is that fry
can potentially be trapped under them.  I have ten, two gallon aquariums,
which I use to start fry out in.  They are filtered by Lee's double action
foam filters(Basically a foam disc that sits on the bottom).  I set these
ten tanks up earlier  this year and found that too many fry were being
trapped under the filters.  I solved this problem by suspending the filters
off the bottom by a half inch or so.  In my case this was easy, as each of
these tanks has a glass top with a 1/4 inch hole trilled in it to allow the
airline to pass through.  Other members of my affiliate simply place a
marble or stone under the filter to keep it from sitting flat on the bottom.

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• From: Bob Woth <bwoth at bellsouth_net>

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