Wonder Shells
$2.99 - $7.99
- Wonder Shells are great for pH, calcium and water hardness control in small aquariums and fish bowls. These all-in-one treatments provide calcium carbonate, sodium thiosulfate, and necessary trace elements, including magnesium. Size small
- These shells are great for adding hardness into your water and work as dechlorinator as well. Often times we need more minerals for our snails, shrimp, plants, goldfish ect.. What size you need depends on your aquarium.
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