I have a 24 Gal Nano Cube that has been up for about 2 months and I suppose it is now time to replace my sponge filters. When i went to purchase them they are costing about $11 a piece. that doesn't seem to bad until i realized that there are two in the first chamber of the over flow and one in the second.
Does that seem like over kill to have 3 sponge filters in the tank? Do i really need more than one?
I have tried to research this online, but i have found nothing, so i thought i would come to the most reliable source i know of.
Any help is greatly appreciated.
thank you all.