I have a 40G plant tank with 4in substrate, JBJ retrofit kit with 2x96w bulbs 10k&actinic,and CO2 hooked up with ph monitor set at6.8. The problem I am having is this green slime alge that is coating all of my plants and blocking the light. I have tried sucking it out but it grows way to fast. What can I do? Turn off light for a week? I plan to brake it down and reset the hole tank in a different room. Is it a waste problem Or to much light?