skimmer neck

Every time I go to clean out my skimmer (bout once every few weeks to a month, seriously the cup takes forever to fill) I clean the neck of the skimmer too. Its a euroreef180 so almost 1/3rd of the skimmer comes off when i clean the cup and the neck is about 4-5" tall. I always get this skimmate that forms there. If i let it dry (ie. i turn the skimmer off and forget to clean it) it turns rubbery. If I wipe it immedietaly, i get about a halfcup-a full cup of wet clay (feels like it). Smells like all things nasty lol.

Is this normal?

Yep! That means it is skimming good! I wiped the lid to my collection cup today with my finger and had a huge clump on it. It really is a horrid smell.

Yeah, it's normal. If you skim wetter, more will collect in the actual cup rather than you having to scrape it off.