You are bidding on 3 pieces of Dry Live Rock.
Yes, you can use dry live rock in a freshwater aquarium, but you must carefully consider how it will drastically change your water chemistry. [
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Because dry live rock consists of natural calcium carbonate (coral skeletons and limestone), it will slowly dissolve in freshwater. This process continuously releases minerals, causing your pH to buffer up significantly (to around 7.8–8.4) while also raising your general hardness (GH) and carbonate hardness (KH
Where Dry Live Rock Works Great 👍
The mineral-boosting properties of calcium carbonate make it excellent for specific setups that thrive in hard, alkaline water: [
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- African Cichlids: Fish from Lakes Malawi and Tanganyika naturally require high pH and hard water.
- Livebearers: Guppies, mollies, swordtails, and platies thrive in hard water.
- Freshwater Snails & Shrimp: They heavily rely on calcium in the water column to build strong shells and molt successfully. [1, 2]