Another thing you can do to prevent fungus (for future breeding projects) is get some alder cones. Frank just got some from me as well, lol (he and I are old buddies). It is always so funny to see friends' names pop up in threads! I know Kurt (Johnston) as he lives up the road from me and was the pres of ACLC. Small world!
Anywho, you can add 1 alder cone per about 10g and it releases a natural anti-fungal (instead of using something like methylene blue)