- Raises pH
- Increases KH to buffer pH
- Adds some hardness to water
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
Rinse Before Using
Customer Reviews
I put 3 lbs of crushed coral in my 3 month old tank that has STS substrate in it, along with some cuttlebone and a small dose of Alkaline buffer (no fish in tank at the time so as not to cause shock) and after 1 week the ph and KH are very stable! Fish went back in and are doing fine!
The pH in my 10g tank was below 6.5 (I believe caused by tannins from driftwood). The crushed coral is the perfect way to slowly raise the pH and maintain it. It works! Could not find this product in LFS or in other online stores. Hooray for Aquarium co-op -- I will purchase again.
Was having trouble with low PH and was recommended to get this and place this in my canister filter. It helped within a couple days to raise my PH from below 6 to 6.8-7. My fish are happy now. Thank you
If I could order this in 10lbs or 20lbs bags, I would. Excellent crushed coral. Fixed my kh and ph problems in a couple days with my 20 gallon.
Currently using crushed coral to help buffer my water parameters (hardness). Great stuff that simply works keep things balanced.
Great if you have low KH tap water in particular. Will add KH to buffer pH and GH increases very slowly. I place in substrate or in HOB filter. Great for guppies, platties, mollies if you don’t have hard water.
Great product and fast shipping!
Does the trick
does what it's supposed to
I have low KH ,ph in my tanks so I add this and it helps greatly. Wish it was sold in bigger bags. I have tried aragonite but don’t get the same results. Thanks guys for a good product and great customer service.
