Tip: If this is an ebb & flow setup ... you have hard tap water (Calcium greater than 70 ppm). Forget the mixing directions on the bottles, we figured it all out for you in Stella’s Flora Nutrient ...

Water polo was initially a dangerous sport that first developed ... the dimensions of which are not fixed and can vary between 20×10 and 30×20 meters. World Aquatics-approved matches require a 30x20 ...