Originally Posted by kitcolebay
It is a scrap piece of pool liner. I will be adding more rocks and lining the edges with Great Stuff for ponds to build it up and camo it a little more. None should be visible when done.
I'm about to go for a search on the forums, but I'll throw it on here too. I'm trying to calculate how much substrate I need. About to order my Hydroton and ABG mix and want to make sure I get the proper amount. Anyone got a good guess or have the formula to figure it?
Measure or guestimate the length, width, and depth of substrate you'll need in inches (ie: 18" x 18" x 2" deep); multiply together, divide by 231, and you'll have the volume you need in gallons.