Excess nutrients don't cause algae. Lighting and improper co2 cause algae. Your light may be to strong for just liquid co2. U should raise the light or dim it with screen.Thank you all. My parameters are fine and I have an all star clean up crew with nerite snails and oto cats as well as a bushy nose Pleco, so all I can conclude is there's more nutrients than the plants can handle so algae is growing so I will look into your suggested plants