Essential for growing and maintaining vibrant aquarium plants, Plant Gro+ is a balanced supplement containing important chelated nutrients for easy absorption. It’s fortified with Vitamin B to enhance long-term color and health. - 6 X stronger concentration than before - 4 fl oz (120 ml) bottle treats up to 1440 US gal (5450 L) - All in one micro-nutrient, iron enriched formula - Promotes vigorous growth, deep colors and a strong root system - Prevents mineral deficiencies - Promotes disease resistance - Safe for fish and all aquarium inhabitants - Use weekly as plants will deplete micro-nutrients naturally over time, and because regular tap water often lacks these elements - For best results, use in conjunction with Fluval Iron Test Kit to maintain a concentration of .3 mg/L of iron - For Freshwater Use Only