Ihave a 55 gal with a wet dry trickle filter . I was hoping to change the wet dry to a fuge. I have a 29 gal that I have turnd into a fuge but I have read that it may to small for using as a filtration system. the dem. are as follows 24'' L 12'' W 16'' H but the fuge area is only 10" L 12" W 16"...