I found Turface to be a very good choice, With a price in CAD of 14$/50lbs it is a good price aswell. It's a gravel that is very good for planted tanks, but is also a gravel so there is no rush (and you can save the expense of Eco. or Flourite.
75lbs did my 120Gal (8sq feet) to a depth of 3".. so 1 bag would be more then enough.
Might not be good for Chiclids tho, it has a low PH. For Chiclids, you could mix in some Seachem Onyx which has a natural PH of 9 to buffer it up.