Microbe Lift Ecological Labratories Calcium Montmorillonite Clay, 6 lb.

It's keeping my pond crystal clear. With my waterfall, it clears up in about 15 Mins doing the mix with water first method. If your waterfall is more ornament style, you might want to make the balls of clay and let them slowly disburse instead. I actually noticed growth in our fish seemed to speed up to more what koi and goldfish guides said. I also had a mildly injured fish that wasn't healing fast and within 2 weeks of this, her scales finally grew back. Maybe timing coincidences, but I think this gave the fish much needed minerals and completed the balance of our controlled ecosystem. They became more curious and active with no other changes to maintenance. I think especially when just starting with young fish, this is as crucial as food. The water quality also has been perfect since. I had a new issue start every month. Since using clay, it's maintained stability. Wins all across the board.

I LIKE THE ON TIME JOB AT THIS SEASON. THANK YOU. I NEED IT FOR MY HEALTH, I TAKE IT EVERY MORNING.

The lid was EXTREMELY hard to get off. Hubby had to use a knife and cut the tabs.Very dangerous to do. Would have given it 5 stars if not for the lid.

Shipping was NOT the best at all!! The lid was not even on straight, let alone screwed on!! Even the outside of the box had a coating of clay!! Come on people; just how hard is it to check a lid before shipping?!?!However, the clay itself is wonderful!! It clears up cloudy water quite quickly. The Bonus...the fish love it and it makes their colors bright AND it's actually good for them!!

The unmistakable scent of perfume tells me that this is cheap, ground-up cat litter with a 6000% price mark-up. I spent the extra money to avoid potential toxic additives and got totally hosed. If you want this same product without paying through the nose for it, just get basic - preferably non-scented - clumping cat litter. I'm shaking my head in disappointment and vowing never to buy "Ecological Labratories" (laboratories is spelled correctly on the actual product by the way) products again, nor will I purchase products from "Marvin Gardens Store".If it was just ground cat litter, then I would not be so upset. It's the perfume smell that makes me worry what else may be in the product that wasn't intended for fish or consumption. Since my fish are edible tilapia, as well as shrimp, guppies and edible plants, I'm pretty touchy about what goes into my water. I intended this clay to improve the aquatic environment, not make it smell like a laundromat.

After having done extensive research, I purchased this product for human consumption. It is a marvelous and almost instantaneous treatment for most any form of nausea and stomach cramping. I have used it successfully myself and most every family member for flu symptoms, food poisoning and the 'revenge'. Yes, it is very gritty and tastes like chalk/mud, but it works great. Do some of your own research on clay cure and clay detoxification. This product is also known as Bentonite clay.

I been using this product for years now, and my koi fish are really colorful and healthy, not tp mention the water clarity is pristin, really love this clay.

Did some research and settled on this for our Koi pond. It provides minerals for the Koi and helps with water clarity (ironically since it clouds the water a little upon first use). Good stuff.