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Caribsea's Ocean Direct Caribbean Live Sand is a great choice for aquarists who are wanting a reef tank set up in minutes. Oolite Ocean Direct Live Reef Sand uses "Sea Breathe" technology to preserve the live sand in its own original ocean bacteria.



  • Contains live ocean bacteria resulting in a fast cycle
  • Grain size: 0.25-1.5mm
  • High Surface Area for Bacteria


Available in various shades and sizes:

  • Original Grade - 0.25-6.5mm
  • Oolite - 0.25-1mm


How much sand do you need?

ALS suggests 1 pound of sand per 2 gallons of display tank volume on average.


Below is a table of common tank sizes and how many pounds of Oolite 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. 


GallonsDimension1" Depth2" Depth3" Depth
10 Gallon20x10x1211.9 lbs23.8 lbs35.7 lbs
20 Gallon24x12x1617.1 lbs34.3 lbs51.4 lbs
29 Gallon30x12x1821.4 lbs42.9 lbs64.3 lbs
30 Gallon36x13x1627.9 lbs55.7 lbs83.6 lbs
40 Gallon36x18x1638.6 lbs77.1 lbs115.7 lbs
55 Gallon48x13x2036.4 lbs72.7 lbs109.1 lbs
75 Gallon48x18x2150.4 lbs100.7 lbs151.1 lbs
90 Gallon48x18x2450.4 lbs100.7 lbs151.1 lbs
120 Gallon48x24x2467.1 lbs134.3 lbs201.4 lbs
180 Gallon72x24x24102.9 lbs205.7 lbs308.6 lbs
220 Gallon72x24x30102.9 lbs205.7 lbs308.6 lbs
300 Gallon72x36x27154.3 lbs308.6 lbs462.9 lbs

Carib Sea - Ocean Direct Oolite Live Sand

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