My peppers and cucumbers leaves look as if the leaves have dark veins in them,I figure it is a nutrient problem.If I compost coffee and tea and veggie scraps,paper ect ,can I put some worm tea in the water to add some nutrients or wood the coffee that had been in the compost cause the Tilapia a problem.Does anyone have any suggestions? Also wood algea in powdered form help or hurt? Thanks Lisa