Spam bot filter

Hey everybody !
I have to filter a large amount of spam every day, even though I've put some captcha. Is there any body good at forum administration there ? I'm new at this, any help would be welcome :)
All the time I spend filtering these stupid "electronic cigarette" and other "sex-toys" posts, I don't spend it working on Gamebuino -_-

i can sacrifice some time and facepalms for your spam problem, i don't know too much about forum stuff either but can u like add a human only readable code to minimize spam?
http://www.google.com/recaptcha

In fact I already added one of these captcha, but it doesn't seem to be enough. I will add some questions/answers I write myself, I guess.

rodot wrote:In fact I already added one of these captcha, but it doesn't seem to be enough. I will add some questions/answers I write myself, I guess.

This is a pretty good idea. Have you tried using an auto-moderator similar to ones that might be found on certain subreddits? (From Reddit.com) I don't have any other ideas but if you need help with the questions just ask.

It's an old topic, we no longer have spam bot problems now ;)

*Moderator edit: please don't quote the whole previous post, it's just above!*

My apologies, I was unsure because when I joined I only had to enter a catcha. Thanks for clearing it up I should have figured by the dates :P