I've been out of the hobby for about 30 years for a variety of reasons (work, family, etc.). Was mostly into freshwater, but dabbled in saltwater nano tanks back then. I'm ready to jump back in--currently looking into setting up ~125g reef tank in the near future after doing much more research. I'm comfortable with the basic chemistry and biology of fish-keeping, but the reef world is going to be a bit of a learning curve. Looking forward to being part of this forum!