OMG Aquatics Posted July 20, 2014 Report Share Posted July 20, 2014 Best filter for 3g tank? No sponge filters because there are guppies in there and they make quite a mess. Quote Link to comment Share on other sites More sharing options...
wicca32 Posted July 20, 2014 Report Share Posted July 20, 2014 most big time breeders use sponge filters in their breeding tanks. i use sponges in my guppy tanks all the time. ive never used a hob on a nano tank. i know hagen makes a mini inturnal filter but its just sponge and and impeller so its basically just a sponge filter that pushes more water. does work good though i have one Quote Link to comment Share on other sites More sharing options...
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