I have the 24" marineland plant life LED on a 20 gallon high. Ever since I installed it I have been having trouble with green algae growth. I have the white lights on only 6 hours a day. I need to have them on though because I have red ludwigia which needs high powered lights. What type of CO2 system should I get? Will it help? Has anyone ever used the below product I found? I just need advice on how to setup a CO2 system. I heard adding more plants can help get rid of algae, but it seems like adding more plants just gives the algae more places to grow.