Join Date: Dec 2011
Location: Rockport, Texas
I prefer tanks that have greater depth than 18". Having 24" gives you much more flexibility for aquascaping. You can fit a larger piece of driftwood or stone, or you can create a more pronounced slope in a 24" vs a 18".
It's surface area, not necessarily tank height, that determines your fish and plant load. You can plant more plants and have more fish in a 48" x 24" (1153 square inches) than a 48" x 18" (864 square inches).
Last edited by Mark Fisher; 11-14-2019 at 11:17 PM.