You might already know this but I have a bit of a nitrate problem and it is to my inderstanding that marine plants can help. Most people use caulerpa and that what I would like but unfortunatly as far as I know there isnt any in Hawaii. Does anyone know the closest thing to it, or how to keep marine plants? I see them all the time but I worry they will just die in my tank. How do you harvest them without killing them?