2007-04-13 07:32:34 · 2 answers · asked by deeka10267 1 in Pets ➔ Fish
If you're looking for something to add to an aquarium to raise pH, look in a pet/fish store in the gravel aisle. If the store caters to saltwater/cichlid fishkeepers, there will be a variety of crushed coral and aragonite (shell material) substrates in a variety of grain sizes. Also, cichlid sand (fine calcite grains) has the same chemical formula (CaCO3), but a different crystallization pattern. Both will do the same job, though.
2007-04-13 07:47:03 · answer #1 · answered by copperhead 7 · 2⤊ 0⤋
you can buy oyster shells crushed for adding to the diet of laying hens to keep the shells on eggs thick enough at any farm store.
I have never seen bags of crushed clam shells but the oyster shells would be basicallly the same if you are using them as a food additive for birds
2007-04-13 14:42:09 · answer #2 · answered by otter_woman 3 · 0⤊ 0⤋