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Crushed Coral 1 Pound

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$4.99
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$4.99
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  • 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 332 reviews
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(320)
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M
Manuel V. (Menlo Park, CA, US)
Great product/Horrible Shipping experience

Unfortunately, the package was delayed so much that by the time it was delivered it felt wrong to have paid UPS for such a long delay. While I understand delivery costs are passed on to the shopper to keep financial margins, it is not acceptable to have such a delay on products expected sooner than later due to the nature of our hobby. Hope this feedback helps, and we still support your business! M.

A
Annie (Pittsboro, NC, US)
Coral for happy snails

Got a good supply of crushed coral to help my water parameters. Have to support good health for my snails….keeping their shells hard & letting them do their important job of cleaning my tanks. Thanks Corey & AC.

J
Jon R.
Awesome product

Was struggling with ph and buffering and was recommended this product. It worked very well and would recommend to anyone with a similar issue

H
H.D. (Mequon, WI, US)
Good ph buffer

I bought this due to fluval stratum bringing my ph down to below 6 and this brought the alkalinity up promptly and the tank is now at a steady 7.2. Very happy

L
Lincoln S. (Morgantown, WV, US)
Does what's it's supposed to do

Shipped fast, arrived without damage. About as good as you can hope for and affordable.