You could always alternate one from tank one mixed new you'd save in half your salt purchases, light has always been the issue for me for moving overall my long tentacle loves direct light on a flat surface while my bta's tend to take to slopes. If theyarent happy with flow most will move anyways and a good skimmer is essential as their buddy clowns make a ness of food and some other tankmates will steal food from slower nem's stirring up a mess. Watch the fingers on your overflow if you have one like that mine gotbit like that not easy to get off lol
what kind of nem ya gettin ????