Ok, these have to go, I am moving and cannot take them with me. Nem is 18-20" across and I have had it 5 years. It is very well adapted to captivity and disease free. Clowsn spawn every month and never leave the nem. I will include the rock the nem is attached to. I would prefer not to ship for the nem's sake, but will out of desperation. If I cannot sell, I will take it to a local shop for credit.