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 269 reviews
David W. (Plattekill, NY, US)
Stuff works ! Nice quality

Needed to buffer my small 2.5 nano tank with Soil substrate. It go to acidic due to not enough water and air exchange / breaking surface tension. The cover is glass and only leaves a small hole for gas's to escape. Currently I'm running a Bio filter foam on a air pump. This helped keep my PH more stable until im able to fix the issue! 👌🏻

Jeni Z. (Lynnwood, WA, US)
Amazing solution to raise PH levels

I added crushed coral to all of my tanks as the PH naturally was below 6.0. I was struggling to keep my fishy friends alive. At the recommendation of a shop employee, this has addressed my issues like magic.
It does make the tank cloudy for a few days but clears up nicely eventually.

Waquar A. (Denton, TX, US)
Perfect and comes with peace of mind

The crushed corals to raise pH, boost KH of water for my African cichlids is awesome. Additionally, it comes with peace of mind — it comes from the Aquarium coop, a place that is reliable — after all, I cannot put my fishes through stress and experimentations of unreliable markaetplace that is a hit or a miss. Aquarium coop is a trusted name, a go to place for anything related to fishes.

Maria A. (Laurel, MD, US)
I like buying for this place

I love watching the youtube channel.

Sheree G. (Denver, CO, US)

Crushed Coral 1 Pound