You could be a reefneck if...
...you know more about plumbing and wiring than your husband
...you told your husband you "traded" your grouchy old ocellaris clowns for a mated pair of onyx percula
...you spent all of your vacation money on tank stuff, oops
...when you do go on vacation, you have a snorkel mask imprint on your forehead for a week afterwards
...you've ever covered up salt stains on the wall (after moving a tank) with a tapestry, hiding the evidence
...you've ever paid over $100 to overnight something other than livestock
...you ever find yourself saying "i got bitten by a clown"
...your only use for a bong would be to turn it into a DIY skimmer
... if you've ever sold mushrooms in a random parking lot to someone you only know by their RC handle
... if you find yourself asking "you don't have planaria do you?"
... you refer to your berghia tank as the "nudi bar"
... your husband refuses to be in the mood unless you scrub your "fish arm" before going to bed
...your only tupperware is under the tank
...your husband forbids you from "mixing" tank towels and bath towels
...you bought a pair of thong underwear just because they had a rhinestone fish on them (sorry there will not be a pic!)