Another clam question

[Clownfishman]

My squamosa is doing good.... I think I can tell of a small amount of new shell growth but im not sure... its looks like newer shell cause it doesn't have deposits... whats the normal amount that one should grow..

[Casey]

I dont think there is a " normal" I get about an inch a year on mine.

[180Bob]

I think it depends on how much you feed them how much light they get etc.... Our clam has grown about a inch and we have only had him for a few months.

[Clownfishman]

I noticed mine has grown one additional scute.. all the way around

[concept3]

the higher your calcium levels, the quicker they build their shells. My calcium level was always low cause of my soft "tap" water, but I have since fixed that. Now, they added 2 scutes in less than 4 months. I now drip kalkwasser as my top off, and dKH is now at an "acceptable level" About an inch or two a year sounds about average.
All this of course, with appropriate additives and lots of light!
ca 420-440ppm