Question How To Add Calcium To Aquarium Cheap

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max haring

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i have 2 20s and a 5 gallon with snails shrimp and a crayfish and they all need calcium ive been using weco wonder shells but their too expensive like 10 dollars just for a 5 gallons worth and the snails shells look terrible the shrimp have been dying with half stuck molts what can i get to add calcium to all my tanks cheaply
 

david1978

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Crushed oyster shells (for chickens) cuttle bone (birds) cleaned egg shells, sea shells. Cheap calcium supplements (drug store)
 

KimberlyG

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I use cuttle bone pieces as David suggested.
 

Gourami36

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I use cuttlebone. Around $4 for 6 pieces and I collect seashells from the beach for free then wash them and add them to my tank. Calcium powder also works. For egg shells you should boil or bake first and crush it then wait until it’s dry to add it to the tank
 

coralbandit

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I use driveway ice melter to remineralize my RO and in my reef .It is calcium chloride .
On the wonder shells they add a lot of mimerals but lower the pH which is not good for snails or shrimp. I use them to raise my hardness in livebearer tanks.
To keep pH up you need to add baking soda along with the wonder shells .
Some people use cuttle bones also but enter the watercolumn very slow IMO.
 

Bubbles_and_Fins

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I got two large pieces of cuttlebone for $1 at my LPS
 
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