Carib Sea ACS00110 Crushed Coral for Aquarium, 10-Pound

Gravel

Good stuff, I use it to buffer a planted aquarium. Make sure you rinse it well.

I am sooo glad we found this product. When I say our tank was in dangerous territory....our PH was about a 3.5. I am really lucky all fish were not dead. So, I bought some bags, boiled the snot out of a few scoops and started adding a small bit at a time to the tank with mesh bags. We now have a healthy living environment and I will be dropping the contents of the bags to the bottom with the gravel to maintain levels. I kept them in bags until I knew I had enough (and ya know...not too much...because...things happen and I only trust things so far without testing for myself).

You must bring your coral to a rolling boil. Started a fresh tank with all new equipment. Several days later had planaria.

The best thing about getting this was also getting the memo beforehand to RINCE it thoroughly, and then again even. It still clouded the water in my tank a touch but not so much the filter system didn't handle it easily, it was crystal clear the next morning, with the coral sparkling white. The hardness of the water is high right now, but once it is all filled and fully diluted it'll start to drop. My well water is hard too, so that's a variable also. I'll be using a LOT of this in the future, no doubt. Well worth the 18 bucks.

I found that my aquarium had low pH levels and low alkalinity levels so I decided to give this a try based off of a recommendation from Reddit. Not only did it solve my issue, it actually looks pretty cute with the small shell pieces. I definitely recommend boiling and rinsing it multiple times because it is very dusty.

Just what I orderd.. I'm

worked as advertised