CaribSea Arag-Alive Special Grade Sand - 20 lbs - Natural Aragonite Substrate for Reef & Marine Tanks, Promotes Coral Growth & Biological Filtration

Best reef aquarium sand out there. I’ve used it for years and find it’s the best grain size.

Just set the tank up with this stuff and it looks great!!

Sand was good wet not dry like it should be thanks.

The BEST!

This substrate has stabalized my alkalinity and seems to also have done the same for my calcium and magnesium.

I originally started my tanks with Fiji pink sand and have changed to this. Just the type of sand I was looking for! Perfect grain size for medium to high flow tanks! This stuff stays put and doesn’t blow all over the place like finer particle sands. Way easier to clean as opposed to others where you get more sand sucked up than anything!

As described.

I was very blatantly scammed, unfortunately. The bag arrived and had duct tape over the top and had clearly been cut open, emptied, and some other, non-aragonite sand put in its place, Indiana Jones style. There was also sand all over the package and the bag was not sealed at all. Shocking that Amazon let this fly, this bag was very obviously not a new product. Not a reflection of CaribSea, love their sand and rocks and I’ve used them for years, this specific sand is excellent, but don’t buy from Amazon. It’s twice the price here anyway. Most LFS sell the 10 lb special grade for $15-$20 anyway.

Me agradó mucho su consistencia y calidad sobre todo que ya trae su cultivo de bacterias y su compuesto para disipar la turbidez en el agua, buen producto.