Maxima pinched mantle?

[lyn.battles]

I have a maxima around 4" but he does not extend mantle any farther than this but he is very light responsive. Could he have pinched mantle or does he look normal all params are good using chinese led box

 

[reeffisher]

I have a PM question as well but your clam looks like it has PM in my oppinion. I'm wondering if mine has early stage pm.