since i don't know what your setup is, here are a few things i do to my tank.
test water weekly, including calcium, alkalinity, phosphates
add strontium & essential elements,
make sure calcium is 400-450 i add solid calcium
monthly water changes
if you have an algae problem, cut your lights back to 8 hours per day. change bulbs one at a time over time so as not to have an algae bloom if your bulbs are over 6months old. get some red leg crabs and snails too.
make sure you have lots of water circulation.
hope this helps, keep us posted