You definitely still save them, especially in veg. First step is to get a bigger, better dehumidifier. You want RH around 45-50%. Work on your temps as well and bring em down a bit. Theres a product called Serenade that will help to prevent it from returning, mist liberally with it during lights off and use a seperate paper towel for each leaf, gently wiping it off. Best to turn fans off too, leaving your ventilation on. Easy fix when they're so small