(6 Pack) Weco Wonder Shell Natural Minerals, Large, for a Total of 6 Large Shells

These shells provide a safeguard against water quality issues. They keep the water quality of our aquarium super clear and provide a viable calcium effectiveness for healthy snail shell growth. I’m happy with the size of these as they last a good amount of time in our 30 liter aquarium. They’re a bit pricey for the money but I won’t be without these for the peace of mind

These work great in our backyard pond! The keep water crystal clear!

Great product, adds minerals for snail shells, water clarity and increased oxygen in the water column for happy fishes.

These are great they give off slight bubbles so you can tell they work and my fish, shrimp, and snails love them.

Work great for snails and shrimp

The water from my faucet is very soft. GH 20ppm, total alkalinity 20ppm, carbonate 30ppm. I use one large one in my 55g and the smallest ones in my 5-7g betta tanks. I noticed drastically fewer (none now) issues with fin rot on the bettas and as you can see in the pictures, my plants, fish, and snails are thriving. The mystery, nerite, (and Malaysian trumpet) snails are breeding regularly. Their shells are very healthy too.The packaging recommends more/larger shells per gallon than what I put in, but I researched also and you don't want to shock your aquatic life. Build up slowly. Each shell lasts between a week and a week and a half when put in a low flow area of the aquarium. I add a fresh shell after the last one is gone when I do weekly or bi-weekly water changes. 10/10!

This was a very good product. The product came quick and was very well packaged. Plants started flourishing and I witness the fish especially my goldfish playing and chasing each other a lot. This is not very common for the goldfish.

My husband uses these for his fish tank. Its been helping the surprise baby white wizard snails we have stay healthy as well as our ghost shrimp. Its even been helping our plants out too!!! My only complaint is that the back of the packaging says different than what is pictured. it says the "giant" one is for a 20 gallon while other places say the size we got was good for a 20 gallon... so we're not sure which is true. Either way it definitely helps our tank that keeps our fish (and plants) healthy

They help my snails to get nice shell

I wondered what all the fuss was about, now I know. Just buy them.

I’ve seen an improvement in my snails shell but the cost at least here in Canada is insane… cannot justify rebuying due to the price, but if you can afford it, they are great!!!