First of all - I disagree with people giving advice before knowing the basics. How big is the gar? And is he in the 75 now? What are the tankmates?
It's true that they don't mind sluggish water, but they do enjoy some water flow. They won't use caves, but any other tankmates might.
If it's a baby, the more plants, the better, if it's the typical 8-12 inch size, then an assortment plants would be nice, but they do enjoy their swimming space. A hang-on-back (HOB) filter would be just fine.
It's true that they don't mind sluggish water, but they do enjoy some water flow. They won't use caves, but any other tankmates might.
If it's a baby, the more plants, the better, if it's the typical 8-12 inch size, then an assortment plants would be nice, but they do enjoy their swimming space. A hang-on-back (HOB) filter would be just fine.
