Can I use it on seedlings and clones? Organics Alive Support January 23, 2020 21:47 Yes, OA is safe to use on seedlings and clones. Related articles Can I use it with my fertilizer injectors and irrigation? Drip lines? What size mesh for filters should I use? Can they all be foliar sprayed? What happens if I over feed with the fertilizers? Can Fertilizers and fermentations be combined with other products? Who else uses OA products? Comments 0 comments Please sign in to leave a comment.