Going back to biology, nature in its complexity once again provides a solution. Algae being the lowest followed by non-bloomers and bloomers. The higher plant will out-compete the lower. As they also have a storing capacity for nutrients, it is sufficient to provide them with enough nutrients through the water column, without making them readily available for algae to enter the picture. Algone controls nutrients .
Nutrient control is algae control.
Algone also provides a readily available carbon source, which is also essential for successfully growing aquatic plants. Always remember that an undetectable nitrate level does not mean your plants are deprived of nitrates, the production of nitrates is continuous. No detectable nitrate means they are not excessive. Nitrate production however is constant in your tank.