Crushed Coral 1 Pound

Regular price
Sale price
Regular price
Sold out
Unit price

Maximum quantity in stock reached.

Orders placed within the next 1 hour will ship today.

  • Raises pH
  • Increases KH to Buffer pH
  • Adds Some Hardness to Water

Crushed coral is a great tool for raising the pH of your water. We use it at 1 pound of crushed coral per 10 gallons of water when mixed in with our gravel. Crushed coral dissolves continuously over time. The lower your pH is, the faster it dissolves. As the pH rises, it slows down how fast the coral dissolves. Crushed coral adds a bit of hardness to the water and it significantly boosts KH which buffers pH from swinging.

Customer Reviews

Based on 304 reviews
Paul H. (Boynton Beach, FL, US)

This crushed coral is perfect for my needs. The cost and shipping with my other items was a no brainer.
Aquarium Co-Op has never let me down.

ALO (Irvine, CA, US)
Value for the Money

Great product that is reasonably priced. One lb size is just right for what I need for my shrimp. Seems to help with my snails as well.

TANYA G. (Denver, CO, US)
Great Coral!

This coral is helping balance the calcium in my tank.

Kelsey S. (Richmond, VA, US)
Good quality

Looks great, buffers oh and kh very well

redmont (La Grande, OR, US)
simple and functional

Its just a bag of rocks but good packaging and good size bag for adding to filters. particle size is appropriate for intended use