Crushed Coral 1 Pound

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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 309 reviews
Marc F. (City of Saint Peters, MO, US)
Crushed Coral

I ordered Crushed Coral to try to stabilize the ph in a couple of heavily planted tanks, seems to be doing the job. I put it in media bags and in my HOB filters, very satisfied

Alexis F. (South Bend, IN, US)
Crush coral

My plants look way better

Lisa (Raleigh, NC, US)
Best crushed coral I’ve found

This is the best crushed coral in my opinion bc there’s very little dust. When I do to rinse it in an old mesh net, I only lose a tiny bit of powered dust. This is the best you can buy.

Ryan M. (Fairfax, VA, US)
Crushed Coral

Added for shrimp and snails.

Ryan F. (Columbus, OH, US)

It’s crushed. It’s coral. Exactly what i needed