Caribsea's Hawaiian Black Arag-Alive! Live Reef Sand is a great choice for new aquarists and new reef tank setups. Arag-Alive sands clear quickly and contain millions of live bacteria, speeding up your tanks cycle and leading to less nuisance algae.
Contains live bacteria to assist with a faster cycle
Grain size: 0.25 - 3.5mm
High Surface Area for Bacteria
Selecting the right sand: When choosing the right sand for your tank, it is important to keep a few things in mind.
How much flow will be in the tank?
Aquariums with high amounts of water movement will require sand with a larger grain size. Smaller particles can be blown around easily.
What kind of inhabitants will you be keeping?
Many species do require particular types of sand, like gobies, jawfish, and wrasses. Fish and invertebrates that like to burrow or sift through the sand will do best with smaller particle sizes.
Will it be for a refugium or deep sandbed?
Sand that will be used for filtration or refugium, we suggest using smaller particles that will give bacteria more surface area to grow and thrive on.
Below is a table of common tank sizes and how many pounds of Hawaiian Black Sand is required to achieve a certain depth. Results may vary depending on the aquascaping in your tank, overflow styles, and the specific tank manufacturer. We always recommend getting a little extra sand to make sure you have enough on hand when you are filling your tank.
Gallons Dimension 1" Depth 2" Depth 3" Depth
10 Gallon 20x10x12 9.1 lbs 18.2 lbs 27.3 lbs
20 Gallon 24x12x16 13.1 lbs 26.2 lbs 39.4 lbs
29 Gallon 30x12x18 16.4 lbs 32.8 lbs 49.2 lbs
30 Gallon 36x13x16 21.3 lbs 42.6 lbs 64.0 lbs
40 Gallon 36x18x16 29.5 lbs 59.0 lbs 88.6 lbs
55 Gallon 48x13x20 27.8 lbs 55.7 lbs 83.5 lbs
75 Gallon 48x18x21 38.5 lbs 77.1 lbs 115.6 lbs
90 Gallon 48x18x24 38.5 lbs 77.1 lbs 115.6 lbs
120 Gallon 48x24x24 51.4 lbs 102.8 lbs 154.2 lbs
180 Gallon 72x24x24 78.7 lbs 157.4 lbs 236.2 lbs
220 Gallon 72x24x30 78.7 lbs 157.4 lbs 236.2 lbs
300 Gallon 72x36x27 118.1 lbs 236.2 lbs 354.3 lbs
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