I worked with a LFS, making their webstore a year ago, and they had a contest to win an H&S skimmer. Of the people that signed up for the contest on-line (around 500 people total) 92 percent were male. I was surprised by that. But really I dont see many female reefers in the stores. It's usually a guy, and occasionally his bored gf/wife.
I dont understand why though. It's like underwater gardening, and I would guess that most gardeners are women.
Chris