all my tanks crashed 3 years ago during a 5 day power outage after a storm. the die off saturated everything with nutrients, and algeas sprouted everywhere. the 75, the oldest, has been coming back. and cleaning up. still fighting a macro algea thats hard to run out. the other misc. tanks are just holding algea infested rubble rock. most of the frags having gone. so im going back to one tank and then a frag tank. and then later , perhaps an upgrade to a 120g 48 x 24 x 24 reef ready for my main display tank. a bit less to take care of.