bone meal, but it's pretty 'hot' for seedlings.
Hm. Sounds like something ELSE in the light warrior/FFOF is locking out micros. FFOF is way too 'hot' for seedlings of many strains, and if your strain is already a light feeder, that's a culprit to look at. Light Warrior has a lot of coco in it too from what I understand.
I'd start seedlings in a seedling starter mix, or Happy Frog with some added perlite, or rapidrooters if you are very cautious. They have the same microorganism as Serenade added at the factory.

That is not actually Black Spot Fungus. That's a nasty disease that affects roses and other thorny cane plants in hot, wet weather.
stinkyattic Reviewed by stinkyattic on . Rust - Black leaf spot mold help! So far ive lost 2 plants to this problem and more on the way. Ive been using serenade every 3-5 days with some success but it keeps coming back. Will i have to keep spraying the plants for their entire life cycle or will they eventually fight it off? What else can i try to combat this problem? i have a sulpher spray, and am considering trying the baking soda method if someone thinks that is a good idea. im hoping someone experienced with serenade can chime in, it seems to work Rating: 5