Matter of fact it has been gaining color since at the LFS becuse they had that clam under VHO lighting for months and months and was about 12-15 inches below the light.
Thank you, this is another theory that I was working on, ...
Can you grow Clams under VHO lighting, if it is strong enough?
and OBVEOUSLY you can!.... I would say that if a clam is getting more brilliant colors that would meen it likes it!... plus if your seeing new growth on its shell... than thats a plus too!
good luck... I have 5.? wpg on my 75 Gallon and Im thinking of getting maybe a Crocea, or Max..... maybbeeee a squamossa.. but I like the Croceas better!!!