If you have softer water with low pH, KH, and GH and wish you could keep aquarium fish, shrimp, and snails that need higher pH, crushed coral is a gentle and safe way to buffer your water. 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.
Useful in Filters or Substrate
One of the easiest and safest ways to prevent harmful pH swings in your water is to increase the KH in your water by adding crushed coral to your aquarium. You can either use it as the substrate or pour a small amount into a filter media bag to use in your hang-in-back, canister, or other media-filled filter.
Rinse Before Using
Because this product is made by crushing coral, there may be some small particles or coral dust in the bag. Make sure to pour the crushed coral into a fish net and thoroughly rinse it under running water (with no soap) to prevent cloudy water in your aquarium.
Easy to use. Great for adding alkalinity and GH. Ad directly to gravel or put inhang on filter.
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Michelangelo L. (Williamsville, NY, US)
Crushed Coral 1 Pound
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Mariam E. (Plano, TX, US)
Definitely does the trick
I’m still new to using crushed coral, but with the guidelines and directions for preparing it (just rinsing it) it definitely keeps the ph at that perfect 7.0.
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Beverly B. (Charlotte, NC, US)
New Aquarium
My son, who is the expert at setting up aquariums for people, recommended this. I trust that this is a good product.
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Sam N. (Lewis Center, OH, US)
Crushed coral
Good product! Would definitely order again over other sellers!
