Let me start by saying these slate stones are a game-changer for aquascaping! I used them in my 10-gallon planted tank, and the deep grey color makes my red cherry shrimp and java moss pop beautifully. The size range (3-5 inches) was perfect for creating layered rock formations.

The packaging deserves special mention - my stones arrived intact with zero breakage, which isn't always the case with natural stone shipments. I received about 8 substantial pieces in my 12lb order, including two impressive 5-inch showpieces that became focal points in my layout.

What surprised me most was how versatile these are. Beyond aquariums, I used leftover pieces to create a stunning miniature garden pathway. The natural quartz veining adds wonderful texture - though if you're looking for perfectly uniform pieces, this might not be for you.

A few things to note: They do arrive dusty (just rinse before use), and while great for nano tanks, larger aquariums might need multiple orders. The thickness varies from 0.5-2 inches, giving nice dimensional options but meaning some pieces are too thick for certain delicate setups.

After three months submerged, I can confirm they're completely inert - no pH changes in my sensitive shrimp tank. My only wish? That they offered an even larger size option for bigger projects!