dwarf derasa

[asmodeus]

Well I bought a baby derasa about 6 8 months ago and it has not even grown 1/4" what is with it. its about 3" and won't grow is there somthing that i should know about these clams I have 12 calms in my 120 gal soon to transfer over to a 60x24x24 here is the list
4 Crocea's
3 maxima's and
5 derasa's here are some pic's of the baby

note the size of the baby derasa to the other one the larger one is about 6"
and here are some of the other ones that have

my newest baby maxima

and my tear drop maxima to can't for get him

and last but not least my other maxima

[

 

[Reef Mongoose]

the other clams are growing fine?

 

[asmodeus]

yes all other clams are growing fine, other then I have to catch my foxface, he likes to nibble at some of the mantels ,but he hasnt touch the smaller one thou

 

[skinz78]

I was gonna suggest that you either have a nibbler or you have pm by the looks of some of your clams.

What are your ca, alk, and mag?

 

[sjames]

yeah, that is odd, i just got a derasa. Hes grown about 1/4 inch in the 2 weeks Ive had him.

 

[asmodeus]

Cal has been sitting at 420-430 and the alk is sitting in the 7DKH range.

 

[PiXieCath]

Increase your alcalinity. Since I get my alcalinity higher, my clams all grow like crazy and they depleated the alcalinity in my tank at an high speed. That will probably help a bit...

BTW, when you said they all grow well, what do you mean by that?

 

[asmodeus]

sorry about that, all of them have grwoth signs on their shells