OldCastle has a nutrient removal filtration system in the current product line-up. What are the issues with this product? Or areas that need improvement?

Our nutrient separating baffle box incorporates a screen to capture trash, leaves, and other debris up out of the pool of water. This helps some of the nutrients out of the water but we aren’t actively attacking the other forms of nitrogen. We are looking for something more along the lines of filtration with this ask.