My first saltwater tank was a 30G with 60lbs. of live rock and it was wallet emptying affair. I am currentlt planning a 75G FO tank built into a wall in my bsement. My question is can I run a healthy FO tank without LR?
yes and no...I always tell others that LR is essential to a sucessful marine aquarium. But there are alternitives, that require more work and tank maintenence. Plus they look tacky.