Arrived in cold weather, I was worried it wouldn't be active, but I didn't have to worry. This is a good product to populate a new aquarium with beneficial bacteria. 20 pounds was a substantial amount, about 14 inches long, 10 inches wide, and 2 inches thick. I assume the volume depends on the type of sand; large, loosely packed aragonite particles compared to small, tightly packed quartz particles.
Enhance Your Indoors And Outdoors With Galashield'S Polished Pebbles For Plants, Vases, Aquariums And Landscaping - 5 Lb Bag
11 Review
Carib Sea ACS05820 Moonlight Aquarium
8 Review
🐾 Zoo Med Excavator Clay Burrowing Substrate, 20 lb - 26406 Laboratories 690108
8 Review
18 Pounds of Natural Polished Decorative Gravel - Pebbles Aquarium Gravel River Rock - Mixed Color Fish Tank Stones - Garden Ornamental River Pebbles Rocks - Polished Gravel for Landscaping (Multicolor)
8 Review
Vacuum cleaner TEQQO Aquastick 3 in 1 Power, grey/turquoise
26 Review
🧲 Efficient Magnetic Fish Tank Cleaner: KEDSUM Floating Clean Brush with Handle Design
34 Review
Greenpro Micranthemum Monte Carlo: Live Large Pearl Grass Aquatic Plant In Tissue Culture Cup For Freshwater Fish Tanks And Aquariums
49 Review
Efficient 2-In-1 Magnetic Fish Tank Cleaner With Non-Slip Design And Scratch-Free Blades
37 Review