Sounds like you've got a lot of gunk to skim out! You can always adjust in order to get wetter or dryer skimmate--it's really a matter of preference and there are arguments and applications for either. Just remember, when you skim wet, you are removing more saltwater from the tank, so when you top off your evaporated water with fresh water, don't forget that you may be dropping the salinity a little bit at a time. You may have to add some salt mix to your top off water to compensate--just make sure you keep an eye on the tank's salinity (preferably with a refractometer, not a swing-arm)