how long can you keep this sand in bag before it kills the sand

Usually every bag comes with an expiration date , I assume the live bacteria will stay alive till that time keeping it at room temperature, when I placed my order of sand, mine had a expiration date for more than a year . So I'm sure they send you fresh packed sand. I completely recommend it.

what is special grade?

The title is confusing on this item as "Special Grade Reef" and "Fiji Pink" are two totally different types of sand. Both are nice but the Special Grade is a bit bigger, if you go to there website you can see the differencehttp://caribsea.com/pages_caribsea/page_product_aragalive.html

My ammonia didn't spike at all. live rock is in, did your ammonia spike with this sand?

This is supposed to cycle your tank instantly... if you have an ammonia spike then you need more live rock. The bacteria in this acts as a filter

Can it be used for fresh water

You can use this for freshwater but it will kill the bacteria, but the sand would be fine to use. the one drawback though is it is aragonite sand, so a lower ph it could dissolve some and add too much calcium in your water. For saltwater you actually want some calcium to dissolve for the corals, but i don't think extra calcium would hurt anything in freshwater.

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CaribSea Arag-Alive Fiji Pink Sand - 20 lbs – Natural Aragonite Substrate for Marine & Reef Tanks – Supports Coral Growth & Enhances Tank Stability

CaribSea Arag-Alive Fiji Pink Sand - 20 lbs – Natural Aragonite Substrate for Marine & Reef Tanks – Supports Coral Growth & Enhances Tank Stability

Product ID: 2776029

Details

Brand
Carib Sea
Liquid Volume
16 Fluid
Item Weight
20 Pounds
Item Form
Granules
Target Species
Fish

🌊20 lbs premium aragonite sand

🌿pH-stable for coral & marine life

🔬porous structure enhances filtration

$286.00

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Description

🌟 Elevate your reef game with Fiji Pink – where science meets style!

BOOSTS CORAL GROWTH - Encourages coral attachment and development, turning your aquarium into a thriving underwater ecosystem.
CRYSTAL CLEAR WATER - Porous sand structure naturally filters waste, improving water clarity and tank health effortlessly.
STABLE P H FOR PEACE OF MIND - Maintains consistent water chemistry, ensuring a safe environment for all marine species.
REEF READY NATURAL SUBSTRATE - Crafted from pure aragonite, this 20 lb pack creates the perfect foundation for vibrant marine and reef tanks.
AESTHETIC ELEGANCE WITH FIJI PINK - Unique white and pink hues add a subtle, stylish pop that elevates your tank’s visual appeal.

CaribSea Arag-Alive Fiji Pink Sand is a 20 lb natural aragonite substrate designed specifically for marine and reef aquariums. Its porous structure supports natural filtration and coral growth while maintaining stable pH levels, ensuring a healthy, clear, and visually stunning aquatic environment.

Specifications

ASIN	B00025YVGC
ASIN	B00025YVGC
Age Range Description	1
Best Sellers Rank	#31,851 in Pet Supplies ( See Top 100 in Pet Supplies ) #24 in Aquarium Sand
Brand Name	Carib Sea
Color	White with pink
Customer Reviews	4.7 4.7 out of 5 stars (3,348)
Date First Available	October 2, 2001
Date First Available	October 2, 2001
Department	Unisex-Adult
Department	Unisex-Adult
Directions	Pour the bag contents into the tank before water is added. Remove the clarifier packet inside and pour the clarifier in once the water had been added.
Included Components	Substrate
Is Discontinued By Manufacturer	No
Item Dimensions LxWxH	18 x 12 x 2 inches
Item Package Dimensions L x W x H	17.4 x 11.8 x 4 inches
Item Weight	20 Pounds
Item model number	00792
Item model number	00792
Manufacturer	CaribSea, Inc
Manufacturer	CaribSea, Inc
Manufacturer recommended age	1 month and up
Material	Plastic
Model Name	Figi Pink
Number of Items	1
Product Dimensions	18 x 12 x 2 inches; 20 Pounds
Size	20lb (Pack of 1)
Specific Uses for Product	Aquariums
Style	Classic
Target Audience Keyword	fish

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