Clam in nano system calcium use.

[GoReefin]

Thinking of adding a small rock clam like a maxima to my 13.5g tank. Total water volume once my third tank is hooked into the system will be closer to 40g. 2 13.5g fluvals, 1 16.5g tank, and 1 20g sump. How much calcium realistically would I need to supplement for the clam to thrive? Do you guys thing a 5g water change weekly would be enough to keep it happy or would 2 part supplements be needed?

 

[laverda]

Depends on size. Some sort of additive to raise alk and CA will be needed as it grows. I used to add 50ml a day to my 29 gallon as the clam grew to 8" before I moved it to a larger tank.

 

[GoReefin]

Looking at starting with a 2 inch maxima. Will just keep an eye on my CA as it grows then. Glad to hear you got him up to 8 inches in a nano!

 

[laverda]

Better to watch your alk as it will change faster than ca and is more critical.

 

[GoReefin]

Better to watch your alk as it will change faster than ca and is more critical.

yes, will need to keep an eye on it. Currently run around 8.2