i have had him for a few months now i waited untill my tank was well established like yourself
i also have a huge lta at around 24" in diameter
plus a small rose and green bubble
gotta love the nems .im selling all my stuff now to start a new tank it will be a 4'x4'x20"h tank with center overflow for all sides viewable.the only thing im keeping going into my set up are my cinnamon clowns,yellow tang,snowflake eel and that blue carpet.the eel is going to have 1/4 of the tank partitioned for just him with a little room around it for fish to swim past.i believe but who knows lol that im going to put the carpet in segregation with the clowns and eel