10.  Your tank has a background decal depicting the Hindenburg disaster
9.  You have a full grown coelacanth you bought when they were in every LFS
8.  You have a Bucky Beer can in your tank
7.  Your surge protector is rated in units of Teslas
6.  You do your fragging with a cutlass
5.  Your reef controller accepts punch cards
4. When you removed your old sandbed you had to chip away a bed of limestone
3.  Captain James Cook once sent you a frag pack
2.  You used to carpool to frag swaps with Jacques Cousteau
1.  You have chalices which have grown out