Smax Posted July 18, 2008 Report Share Posted July 18, 2008 i have a 37 litre tank for raising my guppy fry with just a small air pump powered filter that you just replace the cartrage. the problem is that the cartrage is really dirty within a couple of days and i don't like spending money on new cartrages every couple of weeks. what would be a better filter to use that wouldn't suck up the babies but be less maintanice? Quote Link to comment Share on other sites More sharing options...
Caryl Posted July 18, 2008 Report Share Posted July 18, 2008 A simple box filter works well. Keep the lid off a bit so the fry can swim in and out of it. Fill with filter wool and a couple of stones to hold it down. Someone recently posted a thread on how they made their own I think. They are not hard to make but also very cheap to actually buy one. Quote Link to comment Share on other sites More sharing options...
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