I have a 65 fowler...lots of live rock, cuc, Kole tang, sailfin blenny, banded shrimp, ff, and a yellow headed jawfish...fairly new...thinking of a clam...The tank is 24" high...lighting is a mostly white,30" LED strip plus a 50 watt actinic...I do not have a smart phone and have no idea how to judge PAR in terms of what a clam will require...have ordered a book on clams, but I'd like to start thinking about it...Thanks...Yo Darryl...