B Bilal New member Jan 18, 2011 #1 i have air pump and heater can i cover the top of the aquarium with glass because my light is effected by evaporation .i have 40 g tank.do i need a filter? where does the co2 go.please help.
i have air pump and heater can i cover the top of the aquarium with glass because my light is effected by evaporation .i have 40 g tank.do i need a filter? where does the co2 go.please help.
