I did not know plants would use co2 with only 30 W, i thought the co2 use would be minimal that is why i had 30 watts light running for long hours (the tank looks better with light )and did not even factor those for photoperiod. i thought 30w for 50 g tank is just nothing. But it looks like those 30 watts is counted for photoperiod I will decrease it.
thank you again
Regards
NN
thank you again
Regards
NN