Siphon away the mats daily and replace the water you remove with freshly mixed saltwater.
Keep an eye on your parameters and develop a pattern for maintenance, feeding, etc and be consistent.
It's always best to approach cyano with a natural approach in my opinion, chemical removers can throw off a tank's balance and cause other issues. Usually if you get rid of it using a natural approach, it won't come back for a long time whereas I have heard of folks getting cyano again in a month or so after using something like chemiclean or some other chemical red slime remover.