I like to have a lot of gravel or substrate in all my tanks. I have 20 pounds of sand in a 10 gallon! But I just like a lot of substrate as you can move it around more. I usually angle my substrates as a hill rising up from the front of the tank. It makes the tanks look way bigger! That's just my personal opinion though. I used 100 pounds of gravel in my 55.
-Andrew
-Andrew

