Join Date: Sep 2019
Location: Atlanta, GA area
Pool filter sand vs crushed oyster shell for iwagumi "beach" area
I want to build an iwagumi style tank with a "beach" around my planted area. What substrate should I use for the unplanted beach area? I'll use a commercial aquascaping soil for the rocky "island" that will be planted with a carpet like HC, dwarf hair grass, etc. I like the look of pool sand but crushed oyster shell is similar and might give me some added benefit of helping to buffer the water. Thoughts? Experience with using C.O.S. this way?