Plants talk to you in color. They say their needs and problems, and if they feel healthy or sick.Staying in harmony with the color changes can help detect minor problems before major. Here are some tips on what to see in color variations.Lower amid unusual looking leaves dark green or blue: This is often a symptom of too much nitrogen. You can check this by studying the tips of the leaves to see if they are slightly brown or burnt appearance. Also the new growth can be distorted and twisted.You To correct this situation immediately because excessive nitrogen inhibits the formation of flowers and buds. Also delay ripening and result in lower yields.Here 's the way to correct the situation: Leech their culture media with a product like Advanced Nutrients, the final stage. This will media.Dark nutrients total workforce within the leaves may also indicate a lack of phosphorus, especially at the bottom look purple or blue. This is usually not a problem in hydroponics because the often used a large amount of nutrients to phosphorous.It also noteworthy that the above conditions can also be caused by an imbalance of pH in the root zone. Another factor is the root temperature. If too cold, also reduce the availability of phosphorous.Lower leaves appear green or yellow: Pale yellow or lower leaves can mean several things: If the crop in the later stages of the flowering stage, the yellow is a natural for. The media may be caused by over-wet watering.There a nutrient deficiency, such as lack of nitrogen, which causes the lower leaves turned. However, magnesium deficiency in common with interior gardens, hydroponic plants often because a large part of this nutrient.Here "necessary to correct the situation: Supplement your diet program with high quality calcium / magnesium supplement, such as Advanced Nutrients Sensi-Cal. This service is available in formulations for growth and flowering. For an even faster solution, make a foliar Betty Sensi-Cal law.