What is the best plant to use in a refugium to reduce nitrates in 55 gallon tank?
I'm looking to find a more self-sustainable method to reduce nitrates in my 55 gallon tank. The tank is heavily stocked with cichlids, and I want to find a plant to help reduce the nitrate levels so I don't have to change the water every 3-4 days. I do plan to use a sump tank (a 10 or 15 gallon tank with 100 watt HPS). Reducing my stock is not an option because crowding my tank has kept my fish's temperament in check.
"It's not the strongest, nor the most intelligent that survives. It is the ones that are most adaptable."
- Charles Darwin