| | Re: Removing Java moss!!
Without CO2 there is a limit on how much light intensity you can use without almost certain algae problems. As I understand it, that light is adjustable in intensity. Do you have a PAR meter, and what is the PAR reading at the substrate level? The sudden loss of CO2 would have caused that big algae growth, especially if the light intensity it much above 30 PAR at the substrate.