Pacus are like little puppies..Hand feed em nightcrawlers...like the ones you would use for fishing. They love em! And cichlid gold pellets....the large ones in the red bag.
I have a 300 gal and that is too small for pacus, a public sized aquarium is good for them. I will buy mini pacus..........big type silver dollars for my tank. Also for big aquariums like 200, 300 and bigger cement floors needed
consider using acrylic and glass. btw gravel dislaces water so gravel doesnt add to the weights. glass does though and can add around 125lb for an all glass 300gallon