I would go to 7.5 hrs...but...get rid of the 23W bulbs and use only one 13W one.
23W is high light aria when two are used. After you learn to grow plants/w the correct ferts you can put the other bulb back but in 13W also. This is actually too much but
the DIY CO2 will balance that much. After you get the dry ferts and start to use them
for about a week or two then you can start bringing up the lights by going to 8.5 or 9 hrs a day but still/w one bulb.
The DHG is going to give you a hard time till you learn more about how to grow the pants in general. It's one of those type plants.
23W is high light aria when two are used. After you learn to grow plants/w the correct ferts you can put the other bulb back but in 13W also. This is actually too much but
the DIY CO2 will balance that much. After you get the dry ferts and start to use them
for about a week or two then you can start bringing up the lights by going to 8.5 or 9 hrs a day but still/w one bulb.
The DHG is going to give you a hard time till you learn more about how to grow the pants in general. It's one of those type plants.