OK. 15 years ago was my last attempt at a reef tank. 90G with 20G long sump and Tek lighting (48" x8 t5 bulbs), a 2 inch sand bed and 145# of live rock. I believe I ran at 14K on the average with lighting. This next tank will be 110G give or take. My question has to do with coral choices. I'm embarrassed to say that back in the day I just put coral in the tank regardless of what they were and how they were to be cared for. They all lived and some thrived. But I'm not sure if that's because it really matters WHAT one puts in or if I just got lucky. I'm doing it right this time. Thoughts?