I've got a 75 gln. has been set up for about 3 yrs., c.c, sea clone skimmer, w/d/ , 4 p.hds., lots of dead corrall, no l/r. Occupants, 1 sea horse(have a 10 gln. ready for him), I would like to change to l/s, l/r, fo, What would you do??? Open to all info..