I finally decided to try Chemiclean for my cyno problem and it seems to have knocked it out for the moment. I dosed as the instructions said 2 days ago and just did a 20% was water change tonight. Attempted to turn the skimmer back on as well but it just overflows so i added some carbon. Other than Carbon what else should i do to return things to "œnormal" and get the skimmer back up and running?