I have a 55g reef tank it's on it's 4 month 3in of LS and 70pounds of LR. I will add 20 more pounds of LR in july. This is what i need help with I would like to add corals to it but i have low light 40w for now. In july i will add a coralife light that will push 260w. And im looking to add tridacna clams one day. So is they a coral that can go in low and high light ?? i have some snails and a percula clown in they to.