ok so i want to get a clam for my 3.5gal pico with LEDs i know that the clam will eventuly ( and quickly ) become to large for this tank which is ok because i have a 20gal long that it will go into the reason why i want to put a clam into the 3.5gal is for a contest so when the contest is over ( in 3 months ) i can move it to my "bigger" reef