I was considering adding a little epsom salts to my water when I do fertilize my plants every couple weeks. It turns out that why my other plants were hurting was because of a deficiency. The plant food seemed to help quite a bit and my seedlings grew a bit. Those are green, but seem like still not quite green enough. My other two plants (Which are older.) have been quite stunted and had curling yellow leaves. It wasn't overwatering because I only watered my plants when it was dry. I'm pretty sure that I may have a magnesium deficiency in my soil. If I add epsom salts to my water how much do you guys think I should add and also is it a good idea? I appreciate the tips. Thanks.