Good to wait for corals and particularly anemones so you can get the hang of things, water changes, maintenance. Anemones particularly need stable water conditions so most recommend waiting 6months to a year. It's a good idea to test regularly and keep a record of it so you can see how your tank stables out. Once you are seeing consistent results you will be ready. After the cycle record tests for temp, salinity, amm, nitrite and nitrates. Try and keep regular routines for feeding and PWC
and if it has not been mentioned already use ro
water so you don't have any problems down the track with phosphates and algae. When you start introducing corals there a few other things to test for too... Always ask questions here, it is so helpful!